Adverse impacts of fog events during winter on fine particulate matter, CO and VOCs: a case study of a highway near Dhanbad, India

Weather ◽  
2017 ◽  
Vol 73 (12) ◽  
pp. 396-402 ◽  
Author(s):  
Sunil K. Gupta ◽  
Suresh P. Elumalai
Keyword(s):  
Particulate Matter ◽  
Fine Particulate Matter ◽  
Adverse Impacts ◽  
Fine Particulate

Satellite-based estimates of ground-level fine particulate matter during extreme events: A case study of the Moscow fires in 2010

2011 ◽  
Vol 45 (34) ◽  
pp. 6225-6232 ◽  
Author(s):  
Aaron van Donkelaar ◽  
Randall V. Martin ◽  
Robert C. Levy ◽  
Arlindo M. da Silva ◽  
Michal Krzyzanowski ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Extreme Events ◽  
Fine Particulate Matter ◽  
Ground Level ◽  
Fine Particulate

scholarly journals Studying the Regional Transmission and Inferring the Local/External Contribution of Fine Particulate Matter Based on Multi-Source Observation: A Case Study in the East of North China Plain

2020 ◽  
Vol 12 (23) ◽  
pp. 3936
Author(s):  
Xin Zuo ◽  
Tianhai Cheng ◽  
Xingfa Gu ◽  
Hong Guo ◽  
Yu Wu ◽  
...  
Keyword(s):  
Particulate Matter ◽  
North China Plain ◽  
Fine Particulate Matter ◽  
Surface Wind ◽  
Surface Wind Speed ◽  
Near Surface ◽  
Fine Particulate ◽  
Local Emission ◽  
Transmission Speed

The regional transmission characteristics as well as the local emission and external transmission contribution of fine particulate matter in the eastern North China Plain were investigated using multisource data. Himawari-8 aerosol optical depth can represent the whole layer of air pollution situation; hourly aerosol optical depth were used to reconstruct the route of fine particulate matter horizontal transmission, and the transmission speed was calculated and compared with the near-surface wind speed. A case study conducted on 22 September 2019 showed the pollutant was mainly transmitted from Tangshan to Dezhou, and the transmission speed was greater than the near-surface wind speed. We also found that pollution air mass had 2–3 h of diffusion delay in the near-surface pollutant monitoring results. In addition, the vertical diffusion of pollution mainly occurred at low altitude below 1.8 km. The contribution of local emission and external transmission was inferred in this study with the help of the WRF-Chem model, the pollution in the northeastern portion of the study area mainly derived from local emissions, while the southwestern portion of the study area was mainly affected by external transport. Among them, the local emission accounted for 79.15% of the pollution in Tangshan, while the external transmission contributed 60.28% of the fine particulate matter concentration in Dezhou.

scholarly journals Future climate and adverse health effects caused by fine particulate matter air pollution: case study for Poland

2012 ◽  
Vol 13 (3) ◽  
pp. 705-715 ◽  
Author(s):  
Marko Tainio ◽  
Katarzyna Juda-Rezler ◽  
Magdalena Reizer ◽  
Aleksander Warchałowski ◽  
Wojciech Trapp ◽  
...  
Keyword(s):  
Air Pollution ◽  
Particulate Matter ◽  
Health Effects ◽  
Fine Particulate Matter ◽  
Future Climate ◽  
Adverse Health Effects ◽  
Adverse Health ◽  
Fine Particulate

scholarly journals Impacts of Short-Term Fine Particulate Matter Exposure on Blood Pressure Were Modified by Control Status and Treatment in Hypertensive Patients

Hypertension ◽  
2021 ◽  
Author(s):  
Zhennan Lin ◽  
Xinyan Wang ◽  
Fangchao Liu ◽  
Xueli Yang ◽  
Qiong Liu ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Particulate Matter ◽  
Angiotensin Receptor Blocker ◽  
Moving Average ◽  
Fine Particulate Matter ◽  
Angiotensin Receptor ◽  
Short Term ◽  
Hypertensive Patients ◽  
Adverse Impacts ◽  
Fine Particulate

Previous studies revealed that fine particulate matter (PM 2.5 ) exposure adversely affected blood pressure (BP), but factors that might attenuate this association were still unclear. Using a multicenter panel study among 277 hypertensive participants with intermediate-to-high risk of cardiovascular disease from 4 cities in China, we aimed to explore whether BP control status and antihypertensive medications were potential modifying factors. Each participant carried personal-portable monitors to record individual real-time PM 2.5 levels and 24-hour ambulatory BP up to 3× within 1 year. Generalized linear mixed model with individual-specific random intercept was used to assess effect sizes. We identified adverse impacts of short-term PM 2.5 exposure on BP. However, these impacts were attenuated among patients with controlled BP. For example, per interquartile range (43.78 µg/m 3 ) increment in the prior 10-hour moving average of PM 2.5 , systolic BP increased −0.20 (95% CI, −0.57 to 0.18) mm Hg and 0.85 (95% CI, 0.36–1.35) mm Hg among those with controlled and uncontrolled BP, respectively ( P interaction , 0.0009). Furthermore, among those with uncontrolled BP, treatment with angiotensin receptor blocker would potentially lower BP in responses to PM 2.5 , with systolic BP associated with per interquartile range increment in 10-hour moving average PM 2.5 of 0.32 (95% CI, −0.37 to 1.00) mm Hg and 1.53 (95% CI, 0.74–2.33) mm Hg among those taking angiotensin receptor blocker or not, respectively ( P interaction , 0.0229). In conclusion, although PM 2.5 exposure would increase BP, keeping well-controlled BP status and using angiotensin receptor blockers might attenuate these adverse impacts, which might provide supporting evidence for guiding hypertensive patients who live in areas with high level of PM 2.5 .

scholarly journals Intra-city variability of fine particulate matter during COVID-19 lockdown: A case study from Park City, Utah

2021 ◽  
pp. 111471
Author(s):  
Daniel Mendoza ◽  
Tabitha M. Benney ◽  
Ryan Bares ◽  
Erik T. Crosman
Keyword(s):  
Particulate Matter ◽  
Fine Particulate Matter ◽  
Fine Particulate
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