Topic
Air pollutant concentrations
About: Air pollutant concentrations is a research topic. Over the lifetime, 1652 publications have been published within this topic receiving 36138 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: The observation of elevated pollutant number concentrations across the Boyle Heights community highlights how multiple factors combine to create high pollutant levels, and has important human exposure assessment implications, including the potential utility of the data as inputs to epidemiological studies.
59 citations
TL;DR: The introduction of legislation to reduce the burning of fossil fuels in Britain and elsewhere has meant that the make-up of environmental air pollution has changed considerably, and the decline in fossil fuel-associated pollutants has been replaced by a steady increase in traffic- associated pollutants.
Abstract: The effects of air pollution on health have been recognized for many hundreds of years. In London, during December 1952, a particularly bad smog, which involved extreme elevations of both SO 2 and black smoke, was associated with more than 1,000 extra deaths during a 5-d period (1). The majority of the pollution responsible for smogs is derived from the domestic and industrial burning of fossil fuels. The introduction of legislation to reduce the burning of fossil fuels in Britain and elsewhere has meant that the make-up of environmental air pollution has changed considerably. However, the decline in fossil fuel-associated pollutants has been replaced by a steady increase in traffic-associated pollutants such as finer, respirable particulates, oxides of nitrogen (NOx), ozone (O 3 ), and volatile organic compounds (VOCs).
59 citations
TL;DR: Significant associations were observed between first visits to the GP for URTI and an increase in the concentrations of NO2, O3, PM10, and PM2.5, providing further evidence that air pollution contributes to GP visits for U RTI and non-URTI respiratory diseases in the community.
Abstract: Background: Few studies have explored the relation between air pollution and general practitioner (GP) consultations in Asia. Clinic attendance data from a network of GPs were studied, and the relationship between daily GP consultations for upper respiratory tract infections (URTI) and non-URTI respiratory diseases and daily air pollutant concentrations measured in their respective districts was examined.
Methods: A time series study was performed in 2000–2002 using data on daily patient consultations in 13 GP clinics distributed over eight districts. A Poisson regression model was constructed using the generalised additive model approach for each GP clinic, and associations with daily numbers of first visits for URTI were sought for daily concentrations of the following air pollutants: SO2, NO2, O3, PM10, and PM2.5. A summary relative risk of first visits to the GP for URTI per unit increase in concentration for each air pollutant was derived using a random effect model. First visits for non-URTI respiratory diseases were analysed in three GP clinics.
Results: Significant associations were observed between first visits for URTI and an increase in the concentrations of NO2, O3, PM10, and PM2.5. The excess risk was highest for NO2 (3.0%), followed by O3 (2.5%), PM2.5 (2.1%), and PM10 (2.0%). Similar associations with these air pollutants were found for non-URTI respiratory diseases.
Conclusions: These results provide further evidence that air pollution contributes to GP visits for URTI and non-URTI respiratory diseases in the community.
59 citations
TL;DR: The findings contribute to the limited scientific literature concerning the effects of air pollution on CHF risk for high-exposure settings typical in developing countries, which may have significant public health implications for prevention of CHF in China.
Abstract: There is growing interest in the association between ambient air pollution and congestive heart failure (CHF), but research data from developing countries are very limited. The primary aim of this study was to examine the association between short-term exposure to air pollution and hospital admission for CHF in China. A time-stratified case-crossover study was conducted between 2014 and 2015 in 26 large Chinese cities among 105,501 CHF hospitalizations. Conditional logistic regression models were applied to estimate the percentage changes in CHF admissions in relation to per interquartile range increases in air pollutant concentrations. Air pollution was positively associated with CHF hospitalizations. An interquartile range increase in fine particulate, particulate matter less than 10 µm in aerodynamic diameter, sulfur dioxide, nitrogen dioxide, carbon monoxide, and ozone concentrations on the current day corresponded to 1.2% (95% confidence interval [CI] 0.5%, 1.8%), 1.3% (95% CI 0.5%, 2.0%), 1.0% (95% CI 0.2%, 1.7%), 1.6% (95% CI 0.6%, 2.5%), 1.2% (95% CI 0.5%, 1.9%), and 0.4% (95% CI -0.9%, 1.7%) increases in CHF admissions, respectively. In conclusion, our findings contribute to the limited scientific literature concerning the effects of air pollution on CHF risk for high-exposure settings typical in developing countries, which may have significant public health implications for prevention of CHF in China.
59 citations
TL;DR: In this paper, the authors studied vehicular emitted air pollutant concentrations near three types of roadways in Austin, Texas: (1) State Highway 71 (SH-71), a heavily traveled arterial highway dominated by passenger vehicles; (2) Interstate 35 (I-35), a limited access highway north of Austin in Georgetown; and (3) Farm to Market Road 973 (FM-973), an heavily traveled surface roadway dominated by truck traffic.
58 citations