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Air pollution can occur naturally or be caused by human activities. [4] Air pollution causes around 7 or 8 million deaths each year. [5] [6] It is a significant risk factor for a number of pollution-related diseases, including heart disease, stroke, chronic obstructive pulmonary disease (COPD), asthma and lung cancer.
Looking down from the Hollywood Hills, with Griffith Observatory on the hill in the foreground, air pollution is visible in downtown Los Angeles on a late afternoon.. Air pollution is the introduction of chemicals, particulate matter, or biological materials into the atmosphere that cause harm or discomfort to humans or other living organisms, or damage ecosystems.
Mercury contamination in Grassy Narrows pollution of Wabigoon River; Oder environmental disaster in 2022; Red Hill water crisis in Hawaiʻi, United States beginning in November 2021; Sandoz chemical spill, severely polluting the Rhine in 1986
The air pollution generated in November 2024 in India and Pakistan was regarded by climate researchers as an unprecedented intensification of the region's annual pollution cycle. [2] NASA satellite imaging showed a continuous cloud of smog that extended across the majority of eastern and northern Pakistan, as well as northwestern India. [3] [4]
Air pollution is caused predominantly by burning fossil fuels, cars, and much more. [4] Natural sources of air pollution include forest fires, volcanic eruptions, wind erosion, pollen dispersal, evaporation of organic compounds, and natural radioactivity. These natural sources of pollution often soon disperse and thin settling near their locale.
Editor's Note: This page is a summary of news on the Philadelphia air ambulance crash for Saturday, Feb. 1. For the latest news, view our story for Sunday, Feb. 2. PHILADELPHIA ‒ A Medevac jet ...
We have to remain vigilant that air travel is as safe as it can be. What has happened over the last month has been scary and, in some cases, tragic. Still, when you put it all together, airplane ...
Smog, or smoke fog, is a type of intense air pollution.The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [1] to refer to smoky fog due to its opacity, and odour. [2]