Impact of Meteorology and Aerosol Sources on PM2.5 and Oxidative Potential Variability and Levels in China DOI Creative Commons
Jiemei Liu, Jesper H. Christensen, Zhuyun Ye

et al.

Published: Dec. 7, 2023

Abstract. China has long-term high PM2.5 levels, and its Oxidative Potential (OP) is worth studying as it may unravel the impacts of aerosol pollution on public health better than alone. OP are influenced by meteorological factors, anthropogenic emissions sources atmospheric aging. Although their impact have been studied, measurements only recently became available a limited scale, they require considerable technical expertise resources. For this, joint relationship between for wide range conditions profiles remain elusive. Towards we estimated over using Danish Eulerian Hemispheric Model (DEHM) system with input from WRF weather forecast model. It was found that higher values were primarily concentrated in urban agglomerations central eastern regions China, while lower western northeastern regions. Furthermore, probability density function revealed about 40 % areas had an annual average concentrations exceeding Chinese limit; 36 below 1 𝑛𝑚𝑜𝑙 𝑚𝑖𝑛−1 𝑚−3, 41 2 23 above 𝑚−3. Analysis simulations indicate emission contributed 46 (65 %) 54 (35 to concentration variability. The sensitivity analysis also highlighted levels mostly determined secondary formation biomass burning.

Language: Английский

Seasonal Changes in the Oxidative Potential of Urban Air Pollutants: The Influence of Emission Sources and Proton- and Ligand-Mediated Dissolution of Transition Metals DOI Creative Commons
Pourya Shahpoury, Steven Lelieveld, Deepchandra Srivastava

et al.

ACS ES&T Air, Journal Year: 2024, Volume and Issue: 1(10), P. 1262 - 1275

Published: Aug. 29, 2024

The inhalation of fine particulate matter (PM

Language: Английский

Citations

2
Impact of meteorology and aerosol sources on PM2.5 and oxidative potential variability and levels in China DOI Creative Commons
Jiemei Liu, Jesper H. Christensen, Zhuyun Ye

et al.

Atmospheric chemistry and physics, Journal Year: 2024, Volume and Issue: 24(18), P. 10849 - 10867

Published: Sept. 26, 2024

Abstract. China has long-term high PM2.5 levels, and its oxidative potential (OP) is worth studying as it may unravel the impacts of aerosol pollution on public health better than alone. OP refers to ability induce stress (OS). are influenced by meteorological factors, anthropogenic emission sources, atmospheric aging. Although their impact been studied, measurements only recently became available a limited scale, they require considerable technical expertise resources. For this, joint relationship between for wide range conditions profiles remain elusive. Towards we estimated over using Danish Eulerian Hemispheric Model (DEHM) system with input from Weather Research Forecasting (WRF) model. It was found that higher values were primarily concentrated in urban agglomerations central eastern regions China, while lower western northeastern regions. Furthermore, probability density function revealed about 40 % areas had annual average concentrations exceeding Chinese concentration limit. OP, 36 have below 1 nmolmin-1m-3, 41 2 23 above which line previous measurement studies. Analysis simulations indicates contributed 46 65 variability, respectively, emissions 54 35 respectively. The sensitivity analysis also highlighted fact levels mostly determined secondary formation biomass burning.

Language: Английский

Citations

1
Metal speciation of volcanic aerosol from Mt. Etna under varying aerosol water content and pH obtained by different thermodynamic models DOI Creative Commons
Tom Hull, S. DaRonco, Suzanne Crumeyrolle

et al.

Environmental Science Atmospheres, Journal Year: 2024, Volume and Issue: 5(1), P. 8 - 24

Published: Oct. 31, 2024

Metal speciation of volcanic aerosol from Mt Etna, an open vent, persistently degassing volcano in Europe.

Language: Английский

Citations

1
Size-classified aerosol-bound heavy metals and their effects on human health risks in industrial and remote areas in Japan DOI
Yayoi Inomata,

Naoto Sasaki,

Shunsuke Tanahashi

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 466, P. 133328 - 133328

Published: Dec. 30, 2023

Language: Английский

Citations

3
Comment on egusphere-2023-2615 DOI Creative Commons
Jiemei Liu, Jesper H. Christensen, Zhuyun Ye

et al.

Published: Feb. 6, 2024

Abstract. China has long-term high PM2.5 levels, and its Oxidative Potential (OP) is worth studying as it may unravel the impacts of aerosol pollution on public health better than alone. OP are influenced by meteorological factors, anthropogenic emissions sources atmospheric aging. Although their impact have been studied, measurements only recently became available a limited scale, they require considerable technical expertise resources. For this, joint relationship between for wide range conditions profiles remain elusive. Towards we estimated over using Danish Eulerian Hemispheric Model (DEHM) system with input from WRF weather forecast model. It was found that higher values were primarily concentrated in urban agglomerations central eastern regions China, while lower western northeastern regions. Furthermore, probability density function revealed about 40 % areas had an annual average concentrations exceeding Chinese limit; 36 below 1 𝑛𝑚𝑜𝑙 𝑚𝑖𝑛−1 𝑚−3, 41 2 23 above 𝑚−3. Analysis simulations indicate emission contributed 46 (65 %) 54 (35 to concentration variability. The sensitivity analysis also highlighted levels mostly determined secondary formation biomass burning.

Language: Английский

Citations

0
Comment on egusphere-2023-2615 DOI Creative Commons
Jiemei Liu, Jesper H. Christensen, Zhuyun Ye

et al.

Published: Feb. 9, 2024

Abstract. China has long-term high PM2.5 levels, and its Oxidative Potential (OP) is worth studying as it may unravel the impacts of aerosol pollution on public health better than alone. OP are influenced by meteorological factors, anthropogenic emissions sources atmospheric aging. Although their impact have been studied, measurements only recently became available a limited scale, they require considerable technical expertise resources. For this, joint relationship between for wide range conditions profiles remain elusive. Towards we estimated over using Danish Eulerian Hemispheric Model (DEHM) system with input from WRF weather forecast model. It was found that higher values were primarily concentrated in urban agglomerations central eastern regions China, while lower western northeastern regions. Furthermore, probability density function revealed about 40 % areas had an annual average concentrations exceeding Chinese limit; 36 below 1 𝑛𝑚𝑜𝑙 𝑚𝑖𝑛−1 𝑚−3, 41 2 23 above 𝑚−3. Analysis simulations indicate emission contributed 46 (65 %) 54 (35 to concentration variability. The sensitivity analysis also highlighted levels mostly determined secondary formation biomass burning.

Language: Английский

Citations

0
Reply on RC2 DOI Creative Commons
Yuan Yuan

Published: March 28, 2024

Abstract. China has long-term high PM2.5 levels, and its Oxidative Potential (OP) is worth studying as it may unravel the impacts of aerosol pollution on public health better than alone. OP are influenced by meteorological factors, anthropogenic emissions sources atmospheric aging. Although their impact have been studied, measurements only recently became available a limited scale, they require considerable technical expertise resources. For this, joint relationship between for wide range conditions profiles remain elusive. Towards we estimated over using Danish Eulerian Hemispheric Model (DEHM) system with input from WRF weather forecast model. It was found that higher values were primarily concentrated in urban agglomerations central eastern regions China, while lower western northeastern regions. Furthermore, probability density function revealed about 40 % areas had an annual average concentrations exceeding Chinese limit; 36 below 1 𝑛𝑚𝑜𝑙 𝑚𝑖𝑛−1 𝑚−3, 41 2 23 above 𝑚−3. Analysis simulations indicate emission contributed 46 (65 %) 54 (35 to concentration variability. The sensitivity analysis also highlighted levels mostly determined secondary formation biomass burning.

Language: Английский

Citations

0
Reply on RC1 DOI Creative Commons
Yuan Yuan

Published: March 28, 2024

Abstract. China has long-term high PM2.5 levels, and its Oxidative Potential (OP) is worth studying as it may unravel the impacts of aerosol pollution on public health better than alone. OP are influenced by meteorological factors, anthropogenic emissions sources atmospheric aging. Although their impact have been studied, measurements only recently became available a limited scale, they require considerable technical expertise resources. For this, joint relationship between for wide range conditions profiles remain elusive. Towards we estimated over using Danish Eulerian Hemispheric Model (DEHM) system with input from WRF weather forecast model. It was found that higher values were primarily concentrated in urban agglomerations central eastern regions China, while lower western northeastern regions. Furthermore, probability density function revealed about 40 % areas had an annual average concentrations exceeding Chinese limit; 36 below 1 𝑛𝑚𝑜𝑙 𝑚𝑖𝑛−1 𝑚−3, 41 2 23 above 𝑚−3. Analysis simulations indicate emission contributed 46 (65 %) 54 (35 to concentration variability. The sensitivity analysis also highlighted levels mostly determined secondary formation biomass burning.

Language: Английский

Citations

0
Reply on RC2 DOI Creative Commons
Yuan Yuan

Published: March 28, 2024

Abstract. China has long-term high PM2.5 levels, and its Oxidative Potential (OP) is worth studying as it may unravel the impacts of aerosol pollution on public health better than alone. OP are influenced by meteorological factors, anthropogenic emissions sources atmospheric aging. Although their impact have been studied, measurements only recently became available a limited scale, they require considerable technical expertise resources. For this, joint relationship between for wide range conditions profiles remain elusive. Towards we estimated over using Danish Eulerian Hemispheric Model (DEHM) system with input from WRF weather forecast model. It was found that higher values were primarily concentrated in urban agglomerations central eastern regions China, while lower western northeastern regions. Furthermore, probability density function revealed about 40 % areas had an annual average concentrations exceeding Chinese limit; 36 below 1 𝑛𝑚𝑜𝑙 𝑚𝑖𝑛−1 𝑚−3, 41 2 23 above 𝑚−3. Analysis simulations indicate emission contributed 46 (65 %) 54 (35 to concentration variability. The sensitivity analysis also highlighted levels mostly determined secondary formation biomass burning.

Language: Английский

Citations

0
Cross-cutting research and future directions under the GAPS networks DOI Creative Commons
Tom Harner, Amandeep Saini, Pourya Shahpoury

et al.

Environmental Science Advances, Journal Year: 2024, Volume and Issue: 3(6), P. 798 - 807

Published: Jan. 1, 2024

The GAPs networks are engaging in cross-cutting studies across fields of science and policy to address future challenges.

Language: Английский

Citations

0