Sentences with phrase «high ozone levels»

This may be due to the broader geographic scale at which high ozone levels tend to present.

Fracking has been linked to groundwater contamination in Pennsylvania, high ozone levels in Wyoming and to headaches, sore throats and difficulty breathing for people living close to wells in Colorado.

Crops, which tend to be situated in areas with high ozone levels, would be particularly stunted because they are fertilized.

Zatko and her adviser at the University of Washington in Seattle realized she could join an ongoing research project in Utah that was studying causes of the area's unusually high ozone levels during winter.

While the first two metrics, 4MDA8 and NDGT70 reflect peak ozone levels, SOMO35 represents mid-high ozone levels summed annually, and 3MMDA1 and AVGMDA8 represent high ozone levels over a 3 — 6 month season.

«With our hot, dry summers, we tend to see higher ozone levels because ozone is formed with a combination of air pollution and sunlight.

At the root of the problem is reduced night jet activity and relatively high ozone levels (yes high) over Antarctica.

Citizens in Sacramento, California, spent 39 days in 2017 breathing air with unhealthily high ozone levels — a frequency that far exceeds the American Lung Association's «failing» parameter of just three days per year.

«Similarly, the San Francisco Bay Area's infamous summertime fog blocks the sun and helps protect the region from high ozone levels.»

High ozone levels downstream of pollution sources can cause elevated OH radical concentrations, which in turn increases the concentration of condensable species and thus the potential for nucleation.

These findings further suggest reduced exposure to high levels of ozone in parts of North America and Europe, but increased exposure to moderate to high ozone levels at a small proportion of urban locations, although many sites in these two regions have non-significant trends.

He adds: «Scientists have been so concerned about ozone depletion that they haven't really thought about what effect such a high ozone level could have — life on Earth needs a certain amount of UV.»

Highest ozone levels (purple) are over Africa, where the ozone is being produced, but high values extend across the Indian Ocean to Australia.

The other three metrics: SOMO35 (representative of mid-high ozone levels), and 3MMDA1 and AVGMDA8 (sensitive to high ozone levels) are summed annually or averaged seasonally.

One area of Arabidopsis research with broad applications is the search for genes that confer resistance to environmental stresses such as heat, cold, salty or metallic soils, or high ozone levels to name a few.

Fine particles emitted by vehicles (especially diesel - powered ones), coal - fired power plants, and burning wood can penetrate deep into the lungs, while car exhaust, heat, and sunlight contribute to high ozone levels.

In that year, Houston surpassed Los Angeles as having the highest ozone levels in America.

In October, EPA circulated guidance to states and its regional offices detailing the results of its updated modeling showing that it expects the entire nation to have air quality that meets the old pre-Obama ozone standard by 2023, except for California, which has the nation's highest ozone levels.