In the United States, national ambient air quality standards have led to efforts to reduce human emissions that cause pollution.
Those air quality standards costing multi-billions of dollars are being dramatically tightened.
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These air quality standards are achievable with the appropriate investment.
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The label and a companion website details the components and recycled content of the flooring used in commercial building entrances, as well as where the components were manufactured and whether it meets indoor air quality standards.
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Raun and Ensor conclude that federal air quality standards are adequate where ozone levels are concerned (at 75 parts per billion), but that lives would be saved if particulate matter standards were tightened below the current level of 35 micrograms per cubic meter of air.
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According to the Yes campaign, 95% of the 36m Californians live in areas that fail to meet air-quality standards.
The study was actually conducted in and reported on air pollution in Boston, but it pointed out that air quality levels even below current standards set by the Environmental Protection Agency still pose risks to people who breathe particulate air pollution.
They say air quality is improving, thanks to tighter emissions standards for motor-vehicles and to the moving of one the city's biggest polluters, a steel plant in the western suburbs, to an offshore island.
Beijing Times says authorities must also act quickly to introduce acceptable quality standards for bottled drinking water to allay public fears about contamination from deteriorating air and water quality as well as polluting industries.
Air quality was addressed first as the country began implementing tighter vehicle emissions standards and new environmental regulations.
Tang Dagang, director of the Vehicle Emission Control Center, a policy research group also affiliated with the ministry, said pressure increased last year to tighten diesel fuel standards after the State Council, or cabinet, announced stricter air-quality rules.
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