Sentences with phrase «of some air pollutants exceeded»

The study was conducted in Jena, Germany, a city with 100,000 residents and only a few days over the last several years during which concentrations of some air pollutants exceeded EU daily limits.

Not exact matches

The region's levels of ozone and particulate matter, two pollutants caused by both automobiles and industry, exceed national air quality standards.

Brixton Road, Lambeth has claimed the «dubious honour» of being the first air quality monitoring site to see levels of pollutant nitrogen dioxide exceed the annual hourly limits less than a week into the new year.

The degree of air pollution in China exceeded that in most of the world, yet assessments of total health effects must also include other fossil fuel caused air and water pollutants, as discussed in the following section on ecology and the environment.

During extreme heat events, nighttime temperatures in the region's big cities are generally several degrees higher28 than surrounding regions, leading to increased heat - related death among those less able to recover from the heat of the day.36 Since the hottest days in the Northeast are often associated with high concentrations of ground - level ozone and other pollutants, 37 the combination of heat stress and poor air quality can pose a major health risk to vulnerable groups: young children, the elderly, and those with pre-existing health conditions including asthma.29 Vulnerability is further increased as key infrastructure, including electricity for potentially life - saving air conditioning, is more likely to fail precisely when it is most needed — when demand exceeds available supply.

Another study has found that idling vehicles do create serious pollution: «The concentration of air pollutants near schools may significantly exceed community background levels, particularly in the presence of idling school buses.»