Search results
Results From The WOW.Com Content Network
The Clean Air Act of 1963 (CAA) was passed as an extension of the Air Pollution Control Act of 1955, encouraging the federal government via the United States Public Health Service under the then-Department of Health, Education, and Welfare (HEW) to encourage research and development towards reducing pollution and working with states to establish their own emission reduction programs.
The National Emission Standards for Hazardous Air Pollutants (NESHAP) are air pollution standards issued by the United States Environmental Protection Agency (EPA). The standards, authorized by the Clean Air Act, are for pollutants not covered by the National Ambient Air Quality Standards (NAAQS) that may cause an increase in fatalities or in serious, irreversible, or incapacitating illness.
17 cars emit less than 80 mg/km, i.e. do not emit more NO x on this more demanding cycle than on the NEDC cycle. 22 additional cars fall below the 110% conformity factor. In total: 57% of cars have then a good chance to be compatible with WLTC-RDE. 30 cars fall above the 110% conformity factor and have then to be improved to satisfy the WLTC ...
A Daily Telegraph article on the study described the enjoyment of new car smell as "akin to glue-sniffing". [11] However, another study showed no toxicity from new car odors in lab grown cells. The odors did trigger an immune system reaction. [12] The most common side effects of the new car smell are headaches, sore throats, nausea, and ...
When oxides of nitrogen (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight, ground level ozone is formed, a primary ingredient in smog. A 2005 U.S. EPA report gives road vehicles as the second largest source of VOCs in the U.S. at 26% and 19% are from non road equipment which is mostly gasoline and diesel stations.
Formaldehyde emits from a variety of construction materials, furnishings, and consumer products. The three products that emit the highest concentrations are medium density fiberboard, hardwood plywood, and particle board. Environmental factors such as temperature and relative humidity can elevate levels because formaldehyde has a high vapor ...
In retail spaces, formaldehyde concentrations ranged from 8.0 to 19.4 µg m −3 compared to 14.2 to 45.0 µg m −3 in storage spaces. [90] Occupational exposure to VOCs also depends on the task. One study found that workers were exposed to peak total VOC concentrations when they were removing the plastic film off of new products. [ 90 ]
Vehicle size classes are series of ratings assigned to different segments of automotive vehicles for the purposes of vehicle emissions control and fuel economy calculation. . Various methods are used to classify vehicles; in North America, passenger vehicles are classified by total interior capacity while trucks are classified by gross vehicle weight rating (GV