Sentence examples for primary pollutant from inspiring English sources
A study in Vancouver, Canada (Marshall et al. 2009), illustrated that, especially in the city center, high-walkability neighborhoods had high traffic density, leading to high air pollution concentrations for a traffic-related primary pollutant [nitric oxide (NO)] but not for a secondary pollutant (ozone).
Types with greater persistence were dominated by relatively high secondary pollution or relatively low pollution, and shorter duration day types were dominated by primary pollutant combinations or single-pollutant episodes (e.g., elevated SO2 days – type [2,4]).
These findings suggest that studying individual air pollutants or primary pollutant mixtures may greatly underestimate the adverse health effects caused by air pollution.
Since the primary pollutant in the brine is salt, disposal in the ocean is generally not a problem for facilities located near a coastline.
Modeling of reaction kinetics was investigated with different approaches and their efficacy in fitting the concentration time trends of both the primary pollutant and the intermediates are discussed.
Our chemical analysis next showed that Cr, the primary pollutant in canal water at Hazaribagh, consisted of ≤0.7 μM hexavalent Cr [Cr VI)] and ≤1705 μM trivalent Cr [Cr III)].
Air pollution arises in two ways: as primary pollutants emitted directly out of exhaust pipes and stacks and as secondary pollutants formed from the primary pollutants in the atmosphere in the copresence of sunlight, moisture or both [ 1].
Intersite analysis demonstrates a widespread pollution across the region and shows that primary pollutants (nitrogen oxides, CO, PM) are significantly higher in cities and over the flat lands due to higher anthropogenic pressures.
This region presents a high occurrence of photochemical pollution events, which result from numerous industrial and urban sources of primary pollutants.
This is probably because it is a secondary pollutant, and these Protocols focus on primary pollutants.
It forms when primary pollutants such as car emissions react with sunlight.
