Sentence examples for pollutants over from inspiring English sources

Moreover, there occasionally arise weather conditions that allow the accumulation of pollutants over an urban area for several days.

In wintertime, it can be really cold near the ground and much warmer above, a temperature structure that inhibits the vertical mixing that could distribute pollutants over a larger volume of the atmosphere.

It was due to the build up of pollutants over the whole northern hemisphere during the winter, with contributions from Europe, North America and Asia forming a reservoir of pollutants ready to react in the spring sunshine.

Europe has been successful in reducing the emissions of several nitrogenous pollutants over recent decades.

Boxes and whiskers present 25 to 75 and 10 to 90 percentiles of seasonal pollutants over 2007 2012.

Accumulation of pollutants over space and time is a remarkable advantage of urban sediments in comparison with urban soils.

Ecological studies suggest that living areas which are highly contaminated with air pollutants are over-proportionately inhabited by people of lower socio-economic status [ 5].

Though most of such compounds are non-toxic to humans, accumulation of such micro-pollutants over time in a closed loop system may be a problem.

However, accumulation of sodium and other micro-pollutants over a long period are to be researched as only a few short-term studies are done which suggests that micro-pollutants are degraded in soil over time (Ternes and Joss 2006; Hernández Leal 2010).

For each infant, we calculated the average concentration of each pollutant over the first 2 months of life.

We then used this information to estimate exposure to each pollutant over the gestational period and each trimester using the county of mother's residence.