- ozone
- Because inhaling ozone affects lung function in humans, the U.S. Environmental Protection Agency has set a National Ambient Air Quality Standard (NAAQS) for this pollutant. (epa.gov)
- Ozone is a form of oxygen that readily gives up its additional atom to react with bacteria, molds, and other pollutants to oxidize them and render them less harmful. (brighthubengineering.com)
- Both of these are pollutants and the presence of sunlight promotes the formation of ozone. (brighthubengineering.com)
- Ozone reacts with bacteria, molds, and other pollutants in wastewater and oxidizes them to render them less harmful. (brighthubengineering.com)
- Ozone generators using air cost less, but produce much lower concentrations of oxygen. (brighthubengineering.com)
- Despite the high cost, many advocates point to the benefits of ozone treatment, as it contains no pollutants and breaks down into oxygen. (brighthubengineering.com)
- Ozone is generated by an ozone generator using oxygen enriched air. (brighthubengineering.com)
- As Bryan explains, "Ozone pollution models do really well at predicting air quality in urban areas because that's where the problem started. (umass.edu)
- Forest trees naturally emit the biogenic VOCs monoterpenes and isoprene, two main pre-cursor ingredients that combine in the atmosphere with nitric oxide (NO), which is emitted mainly by soils, to form the pollutant ozone. (umass.edu)
- pollution
- Several years have passed since I first began to document the death of trees from air pollution, and it often feels there is nothing left to add as the trend accelerates - and is ever more assiduously ignored or misattributed. (blogspot.fr)
- The Air Pollution Control Act of 1955 (Pub.L. 84-159, ch. 360, 69 Stat. 322) was the first Clean Air Act (United States) enacted by Congress to address the national environmental problem of air pollution on July 14, 1955. (wikipedia.org)
- Therefore, The Air Pollution Control Act contained no provisions for the federal government to actively combat air pollution by punishing polluters. (wikipedia.org)
- The next Congressional statement on air pollution would come with the Clean Air Act of 1963. (wikipedia.org)
- The Air Pollution Control Act was the culmination of much research done on fuel emissions by the federal government in the 1930s and 1940s. (wikipedia.org)
- A replacement, the Clean Air Act (United States) (CAA), was enacted to substitute the Air Pollution Control Act of 1955. (wikipedia.org)
- A decade later the Motor Vehicle Air Pollution Control Act was enacted to focus more specifically on automotive emission standards. (wikipedia.org)
- A mere two years later, the Federal Air Quality Act was established to define "air quality control regions" scientifically based on topographical and meteorological facets of air pollution. (wikipedia.org)
- California was the first state to act against air pollution when the metropolis of Los Angeles began to notice deteriorating air quality. (wikipedia.org)
- The location of Los Angeles furthered the problem as several geographical and meteorological problems unique to the area exacerbated the air pollution problem. (wikipedia.org)
- Prior to the Air Pollution Control Act of 1955, little headway was made to initiate this air pollution reform. (wikipedia.org)
- It was not until 1947 that California authorized the creation of Air Pollution Control Districts in every county of the state. (wikipedia.org)
- There have been several amendments made to The Air Pollution Act of 1955. (wikipedia.org)
- In accordance with this law, enforcement proceedings were initiated in areas subject to interstate air pollution transport. (wikipedia.org)
- Senator Edmond Muskie (D-Maine) said that this was the "first comprehensive federal air pollution control. (wikipedia.org)
- The National Air Pollution Control Administration then provided technical information to the states, which the states used to develop air quality standards. (wikipedia.org)
- This amendment was not as effective as it was initially thought to be, with only 36 air regions designated, and as well as no states having fully developed pollution control programs. (wikipedia.org)
- concentrations
- NO was once found in very low concentrations in the air until industrialization and human activities such as driving trucks, trains and cars changed atmospheric chemistry, Bryan says. (umass.edu)
- Environmental Protec
- In particular, the 1970 amendments required the newly created The United States Environmental Protection Agency to set the National Ambient Air Quality Standards to protect public health and welfare. (wikipedia.org)
- quality
- Our atmospheric chemistry models have all been tested and optimized for urban air quality studies. (umass.edu)
- Additional legislation was passed in 1963 to better fully define air quality criteria and give more power in defining what air quality was to the secretary of Health, Education, and Labor. (wikipedia.org)
- In 1967, the Air Quality Act of 1967 was passed. (wikipedia.org)
- In 1967, the Air Quality Act was enacted in order to expand federal government activities. (wikipedia.org)
- In addition, the 1970 amendments required various states to submit state implementation plans for attaining and maintaining the National Ambient Air Quality Standards. (wikipedia.org)
- The 1990 amendments granted significantly more authority to the federal government than any prior air quality legislation. (wikipedia.org)