Mechanism changing iron solubility and oxidative potential associated with PM

Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and...
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Autor*in:	Hu, Hao [verfasserIn] Liu, Cong [verfasserIn] Yang, Fan [verfasserIn] Qian, Hua [verfasserIn] Russell, Armistead [verfasserIn] Shahsavani, Abbas [verfasserIn] Kan, Haidong [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Oxidative stress Indoor air quality Human exposure Quinone SOA

Übergeordnetes Werk:	Enthalten in: Atmospheric environment - Amsterdam [u.a.] : Elsevier Science, 1967, 308
Übergeordnetes Werk:	volume:308

DOI / URN:	10.1016/j.atmosenv.2023.119879

Katalog-ID:	ELV010337199

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245	1	0	\|a Mechanism changing iron solubility and oxidative potential associated with PM
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520			\|a Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport.
650		4	\|a Oxidative stress
650		4	\|a Indoor air quality
650		4	\|a Human exposure
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650		4	\|a SOA
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700	1		\|a Russell, Armistead \|e verfasserin \|4 aut
700	1		\|a Shahsavani, Abbas \|e verfasserin \|4 aut
700	1		\|a Kan, Haidong \|e verfasserin \|0 (orcid)0000-0002-1871-8999 \|4 aut
773	0	8	\|i Enthalten in \|t Atmospheric environment \|d Amsterdam [u.a.] : Elsevier Science, 1967 \|g 308 \|h Online-Ressource \|w (DE-627)306654113 \|w (DE-600)1499889-0 \|w (DE-576)081984561 \|x 1878-2442 \|7 nnns
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936	b	k	\|a 38.81 \|j Atmosphäre \|q VZ
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publishDate	2023
allfields	10.1016/j.atmosenv.2023.119879 doi (DE-627)ELV010337199 (ELSEVIER)S1352-2310(23)00305-9 DE-627 ger DE-627 rda eng 550 690 VZ 38.81 bkl 43.00 bkl 30.00 bkl Hu, Hao verfasserin aut Mechanism changing iron solubility and oxidative potential associated with PM 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport. Oxidative stress Indoor air quality Human exposure Quinone SOA Liu, Cong verfasserin (orcid)0000-0003-2192-6489 aut Yang, Fan verfasserin aut Qian, Hua verfasserin aut Russell, Armistead verfasserin aut Shahsavani, Abbas verfasserin aut Kan, Haidong verfasserin (orcid)0000-0002-1871-8999 aut Enthalten in Atmospheric environment Amsterdam [u.a.] : Elsevier Science, 1967 308 Online-Ressource (DE-627)306654113 (DE-600)1499889-0 (DE-576)081984561 1878-2442 nnns volume:308 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.81 Atmosphäre VZ 43.00 Umweltforschung Umweltschutz: Allgemeines VZ 30.00 Naturwissenschaften allgemein: Allgemeines VZ AR 308
spelling	10.1016/j.atmosenv.2023.119879 doi (DE-627)ELV010337199 (ELSEVIER)S1352-2310(23)00305-9 DE-627 ger DE-627 rda eng 550 690 VZ 38.81 bkl 43.00 bkl 30.00 bkl Hu, Hao verfasserin aut Mechanism changing iron solubility and oxidative potential associated with PM 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport. Oxidative stress Indoor air quality Human exposure Quinone SOA Liu, Cong verfasserin (orcid)0000-0003-2192-6489 aut Yang, Fan verfasserin aut Qian, Hua verfasserin aut Russell, Armistead verfasserin aut Shahsavani, Abbas verfasserin aut Kan, Haidong verfasserin (orcid)0000-0002-1871-8999 aut Enthalten in Atmospheric environment Amsterdam [u.a.] : Elsevier Science, 1967 308 Online-Ressource (DE-627)306654113 (DE-600)1499889-0 (DE-576)081984561 1878-2442 nnns volume:308 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.81 Atmosphäre VZ 43.00 Umweltforschung Umweltschutz: Allgemeines VZ 30.00 Naturwissenschaften allgemein: Allgemeines VZ AR 308
allfields_unstemmed	10.1016/j.atmosenv.2023.119879 doi (DE-627)ELV010337199 (ELSEVIER)S1352-2310(23)00305-9 DE-627 ger DE-627 rda eng 550 690 VZ 38.81 bkl 43.00 bkl 30.00 bkl Hu, Hao verfasserin aut Mechanism changing iron solubility and oxidative potential associated with PM 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport. Oxidative stress Indoor air quality Human exposure Quinone SOA Liu, Cong verfasserin (orcid)0000-0003-2192-6489 aut Yang, Fan verfasserin aut Qian, Hua verfasserin aut Russell, Armistead verfasserin aut Shahsavani, Abbas verfasserin aut Kan, Haidong verfasserin (orcid)0000-0002-1871-8999 aut Enthalten in Atmospheric environment Amsterdam [u.a.] : Elsevier Science, 1967 308 Online-Ressource (DE-627)306654113 (DE-600)1499889-0 (DE-576)081984561 1878-2442 nnns volume:308 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.81 Atmosphäre VZ 43.00 Umweltforschung Umweltschutz: Allgemeines VZ 30.00 Naturwissenschaften allgemein: Allgemeines VZ AR 308
allfieldsGer	10.1016/j.atmosenv.2023.119879 doi (DE-627)ELV010337199 (ELSEVIER)S1352-2310(23)00305-9 DE-627 ger DE-627 rda eng 550 690 VZ 38.81 bkl 43.00 bkl 30.00 bkl Hu, Hao verfasserin aut Mechanism changing iron solubility and oxidative potential associated with PM 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport. Oxidative stress Indoor air quality Human exposure Quinone SOA Liu, Cong verfasserin (orcid)0000-0003-2192-6489 aut Yang, Fan verfasserin aut Qian, Hua verfasserin aut Russell, Armistead verfasserin aut Shahsavani, Abbas verfasserin aut Kan, Haidong verfasserin (orcid)0000-0002-1871-8999 aut Enthalten in Atmospheric environment Amsterdam [u.a.] : Elsevier Science, 1967 308 Online-Ressource (DE-627)306654113 (DE-600)1499889-0 (DE-576)081984561 1878-2442 nnns volume:308 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.81 Atmosphäre VZ 43.00 Umweltforschung Umweltschutz: Allgemeines VZ 30.00 Naturwissenschaften allgemein: Allgemeines VZ AR 308
allfieldsSound	10.1016/j.atmosenv.2023.119879 doi (DE-627)ELV010337199 (ELSEVIER)S1352-2310(23)00305-9 DE-627 ger DE-627 rda eng 550 690 VZ 38.81 bkl 43.00 bkl 30.00 bkl Hu, Hao verfasserin aut Mechanism changing iron solubility and oxidative potential associated with PM 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport. Oxidative stress Indoor air quality Human exposure Quinone SOA Liu, Cong verfasserin (orcid)0000-0003-2192-6489 aut Yang, Fan verfasserin aut Qian, Hua verfasserin aut Russell, Armistead verfasserin aut Shahsavani, Abbas verfasserin aut Kan, Haidong verfasserin (orcid)0000-0002-1871-8999 aut Enthalten in Atmospheric environment Amsterdam [u.a.] : Elsevier Science, 1967 308 Online-Ressource (DE-627)306654113 (DE-600)1499889-0 (DE-576)081984561 1878-2442 nnns volume:308 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.81 Atmosphäre VZ 43.00 Umweltforschung Umweltschutz: Allgemeines VZ 30.00 Naturwissenschaften allgemein: Allgemeines VZ AR 308
language	English
source	Enthalten in Atmospheric environment 308 volume:308
sourceStr	Enthalten in Atmospheric environment 308 volume:308
format_phy_str_mv	Article
bklname	Atmosphäre Umweltforschung Umweltschutz: Allgemeines Naturwissenschaften allgemein: Allgemeines
institution	findex.gbv.de
topic_facet	Oxidative stress Indoor air quality Human exposure Quinone SOA
dewey-raw	550
isfreeaccess_bool	false
container_title	Atmospheric environment
authorswithroles_txt_mv	Hu, Hao @@aut@@ Liu, Cong @@aut@@ Yang, Fan @@aut@@ Qian, Hua @@aut@@ Russell, Armistead @@aut@@ Shahsavani, Abbas @@aut@@ Kan, Haidong @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	306654113
dewey-sort	3550
id	ELV010337199
language_de	englisch
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author	Hu, Hao
spellingShingle	Hu, Hao ddc 550 bkl 38.81 bkl 43.00 bkl 30.00 misc Oxidative stress misc Indoor air quality misc Human exposure misc Quinone misc SOA Mechanism changing iron solubility and oxidative potential associated with PM
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title	Mechanism changing iron solubility and oxidative potential associated with PM
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title_full	Mechanism changing iron solubility and oxidative potential associated with PM
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title_sort	mechanism changing iron solubility and oxidative potential associated with pm
title_auth	Mechanism changing iron solubility and oxidative potential associated with PM
abstract	Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport.
abstractGer	Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport.
abstract_unstemmed	Water-soluble transition metals are more bio-accessible than insoluble particulate matter (e.g., PM2.5) components and can contribute to PM2.5 oxidative potential, a metric that has been linked to air pollution health impacts. Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport.
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title_short	Mechanism changing iron solubility and oxidative potential associated with PM
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author2	Liu, Cong Yang, Fan Qian, Hua Russell, Armistead Shahsavani, Abbas Kan, Haidong
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Fifteen pairs of indoor-outdoor PM2.5 samples were collected outdoors and in unoccupied rooms to examine change of iron solubility and dithiothreitol-based oxidative potential of PM2.5 during outdoor-to-indoor transport. Changes of relative humidity (ΔRH = RHin/RHout - 1) and aerosol acidity (ΔpH = pHin/pHout - 1) together were found to modify iron solubility (ΔS = Sin - Sout) during outdoor-to-indoor transport. Multiple linear regression was performed to examine relationship between ΔRH, ΔpH and ΔS, resulting in a statistically significant correlation (correlation coefficient of 0.68 and P value < 0.05). This correlation coefficient is higher than that for ΔRH or ΔpH alone (0.40 between ΔRH and ΔS and −0.32 between ΔpH and ΔS). This supports that during outdoor-to-indoor transport, increases in RH lead to increases in water content in PM2.5, increasing the amount of iron in the aqueous phase, and decreases in pH would lead to stronger metal mobilization capacity. These two factors together explain the change of iron solubility during the transport process. A correlation coefficient of 0.67 was also found between ΔRH and ΔpH and changes in intrinsic oxidative potential (OPM) of PM2.5, further corroborating the combined role of relative humidity and aerosol acidity in driving change of iron solubility and OPM of PM2.5 during outdoor-to-indoor transport.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Oxidative stress</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Indoor air quality</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Human exposure</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Quinone</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">SOA</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liu, Cong</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(orcid)0000-0003-2192-6489</subfield><subfield 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Mechanism changing iron solubility and oxidative potential associated with PM

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