scholarly journals Heavy metals bound to fine particulate matter from northern China induce season-dependent health risks: A study based on myocardial toxicity

2016 ◽  
Vol 216 ◽  
pp. 380-390 ◽  
Author(s):  
Yingying Zhang ◽  
Xiaotong Ji ◽  
Tingting Ku ◽  
Guangke Li ◽  
Nan Sang
Keyword(s):  
Heavy Metals ◽  
Particulate Matter ◽  
Health Risks ◽  
Fine Particulate Matter ◽  
Northern China ◽  
Fine Particulate

scholarly journals Local and regional contributions to fine particulate matter in the 18 cities of Sichuan Basin, southwestern China

2019 ◽  
Vol 19 (9) ◽  
pp. 5791-5803 ◽  
Author(s):  
Xue Qiao ◽  
Hao Guo ◽  
Ya Tang ◽  
Pengfei Wang ◽  
Wenye Deng ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Gas Phase ◽  
Sichuan Basin ◽  
Fine Particulate Matter ◽  
Eastern China ◽  
Northern China ◽  
Sulfate Ions ◽  
Inorganic Aerosols ◽  
Fine Particulate ◽  
The Sichuan Basin

Abstract. The Sichuan Basin (SCB) is one of the regions suffering from severe air pollution in China, but fewer studies have been conducted for this region than for the more developed regions in eastern and northern China. In this study, a source-oriented version of the Community Multiscale Air Quality (CMAQ) model was used to quantify contributions from nine regions to PM2.5 (i.e., particulate matter, PM, with an aerodynamic diameter less than 2.5 µm) and its components in the 18 cities within the SCB in the winter (December  2014 to February 2015) and summer (June to August 2015). In the winter, citywide average PM2.5 concentrations are 45–126 µg m−3, with 21 %–51 % and 39 %–66 % being due to local and nonlocal emissions, respectively. In the summer, 15 %–45 % and 25 %–52 % of citywide average PM2.5 (14–31 µg m−3) are due to local and nonlocal emissions, respectively. Compared to primary PM (PPM), the inter-region transport of secondary inorganic aerosols (SIA), including ammonia, nitrate, and sulfate ions (NH4+, NO3-, and SO42-, respectively), and their gas-phase precursors are greater. The region to the east of SCB (R7, including central and eastern China and others) is the largest contributor outside the SCB, and it can contribute approximately 80 % of PM2.5 in the eastern, northeastern, and southeastern rims of the SCB but only 10 % in other SCB regions in both seasons. Under favorable transport conditions, regional transport of air pollutants from R7 could account for up to 35–100 µg m−3 of PM2.5 in each of the SCB cities in the winter. This study demonstrates that it is important to have joint emission control efforts among cities within the SCB and regions to the east in order to reduce PM2.5 concentrations and prevent high PM2.5 days for the entire basin.

Uncertainty in health risks due to anthropogenic primary fine particulate matter from different source types in Finland

2010 ◽  
Vol 44 (17) ◽  
pp. 2125-2132 ◽  
Author(s):  
M. Tainio ◽  
J.T. Tuomisto ◽  
J. Pekkanen ◽  
N. Karvosenoja ◽  
K. Kupiainen ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Health Risks ◽  
Fine Particulate Matter ◽  
Fine Particulate
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