air pollution

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The results indicated that vehicular movement played an important role in a gradual increase of air pollutants from morning to evening.
PCE is a solvent commonly used as a degreasing agent in metal manufacturing and is a hazardous air pollutant under the Clean Air Act.
These differences in results of various studies are due to numerous differences including population characteristics, individual susceptibility, technical aspect of exposure assessment methodologies, air pollutants measurements, pollution types, the duration of exposure and air pollutant particles and size.
The evidence suggests that high levels of certain air pollutants are associated with a higher risk of cardiovascular problems, but exactly how this association works has not been clarified.
In this study most of the air pollutant associations with ASD were stronger for boys than girls however this must be interpreted with caution as a smaller number of girls with ASD were included in the analysis.
2]) and a concentration gradient of the interested air pollutant, cD (mole/[cm.
Reynolds spokesman David Howard said regardless of the dangers from passive smoke indoors, no research supports regulators' decision to declare it an air pollutant.
Miscellaneous metal parts and products surface coating operations emit a number of toxic air pollutants including xylenes, toluene, methyl ethyl ketone, methyl isobutyl ketone, phenol, ethyl benzene and glycol ethers.
is known for manufacturing northern bleached softwood kraft pulp; but the pulp and paper company is starting to be recognized for the work it is doing to reduce various air pollutants that can affect people's health and contribute to air pollution.
Although a comprehensive approach to reducing emissions requires both technology and TDM strategies, TDM strategies are notable since they reduce emissions of all air pollutants from motor vehicles, unlike technologies that target specific pollutants.
Canadas air quality is among the best in the world and today the Government of Canada announced it has finalized air pollutant regulations that will result in even better air quality for Canadians.
EPA's proposed delisting of MEK as a hazardous air pollutant does not affect other ways this chemical will be regulated, however, it will continue to be regulated as a VOC because of its contribution to smog.
Another example is dioxin, which is an air pollutant that we're exposed to through our diet.
In the area of air pollutant exposure, UCLA School of Public Health environmental health sciences professor Arthur Winer assigned a grade of "B-plus" to exposure assessment researchers, noting "significant advances in knowledge but that some nonconventional pollutants have not been adequately studied.
Analysis of the data showed that the amount of air pollutant exposure at any of the collection times had no effect on either of the pregnancy problems.