An air quality standard, as a human activity, refers to the formally established regulatory limits on concentrations of specific atmospheric pollutants, derived through policy processes that integrate scientific risk assessment, exposure modeling, and socio-economic considerations. These standards define permissible ambient levels or emission thresholds for contaminants such as particulate matter, ozone, nitrogen oxides, and sulfur dioxide to protect human health and the environment. Their development and revision typically involve expert review of epidemiological and toxicological data, public consultation, and impact analyses, followed by legal codification and implementation through monitoring networks, compliance mechanisms, and enforcement actions.
Acrid smoke hung heavily over the Malaysian town of Serian, seeping into homes and cloaking roadside stalls, as residents navigated an air-quality emergency fueled by transboundary haze from Indonesia's raging fires.
Environment
Sep 6, 2026
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13
Malaysia declared an emergency in the Serian division of its Sarawak state on Borneo after hazardous haze from fires in neighboring Indonesia drove air pollution to critical levels, the Prime Minister's Office said.
Environment
Sep 4, 2026
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16
NASA has released a report recommending an initial health standard for the Martian dust that astronauts could inhale during future missions. Although sending people to Mars is still years away, NASA needs to establish safety ...
Space Exploration
Aug 18, 2026
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20
Heavy smoke from several large wildfires blazing in Canada and Minnesota is expected to engulf large swaths of the Midwest and Northeast U.S. this week, exposing millions of people to dangerous air pollution.
Environment
Jul 15, 2026
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8
China and the southern United States were hit last year by some of their worst sand and dust storms in decades, the United Nations said Friday.
Environment
Jul 10, 2026
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9
Two-thirds of the European Union's population may have been exposed to harmful levels of ozone pollution during last month's record-breaking heat wave, a report exclusively shared with AFP warned Thursday.
Environment
Jul 9, 2026
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8
For years, Darwin residents have been concerned about toxic chemicals emitted by the city's two gas export facilities. In fact, some locals are so worried about these airborne chemicals—particularly benzene—they recently ...
Environment
Jul 1, 2026
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9
New Delhi authorities announced a new policy Monday aimed at curbing pollution in the city, including incentives to get residents to scrap old vehicles for electric ones.
Environment
Jun 29, 2026
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8
For decades, the United States made steady progress in reducing surface ozone pollution, the main ingredient in smog. But that progress—made as vehicles, industries, and power sources became cleaner—is increasingly being ...
Environment
Jun 5, 2026
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10
Researchers from Imperial College London have conducted the U.K.'s largest-ever longitudinal study of indoor fungal air pollution, revealing that homes are active fungal ecosystems rather than passive recipients of outdoor ...
Ecology
Jun 5, 2026
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