Sentence examples for decreasing pollution levels from inspiring English sources

All surfaces, except O3, showed a pollution gradient within the city that followed the expected trend of higher intensities in the northeast near the industrial core, and decreasing pollution levels towards the outskirts of the city.

One aim of these programs would be to decrease pollution caused by large-scale electricity generation.

We used logistic regression models to assess associations between respiratory symptoms and traffic exposure being defined a) as living within 200 m of the highway, and b) as a bell-shaped function simulating the decrease of pollution levels with increasing distance to the highway.

These interactions indicated that higher chronic stress was associated with increases over time in symptoms and decreases over time in PEFR as pollution levels decreased.

This can be explained by the decreasing trend in air pollution levels throughout the study period.

More and more every year, because every year without a perceptible decrease in air pollution levels is a lost one.

At the same time organic waste pollution levels decreased slightly, which is attributed to the completion of new sewage treatment plants; their number increased 20%, reaching a total of 101.

These interactions showed that higher chronic stress was associated with heightened inflammatory profiles as pollution levels decreased.

If the pollutant source is a coating, then pollution levels decrease with age, but can still have a significant impact, she says.

However, in Italy air pollution levels have decreased in recent years thanks to EU air quality Directives [ 30], a reduction in the number of older and polluting cars, as well as a decline in daily use of transportation by car in response to the economic crisis.

And a growing number of correlative studies have shown that when people move to cleaner regions, or when air pollution levels decrease, health outcomes improve, says Carrie Breton, an environmental health researcher at the University of Southern California's Keck School of Medicine.