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Piccadilly Circus during the Great Smog of London, 1952. Pea soup fog (also known as a pea souper, black fog or killer fog) is a very thick and often yellowish, greenish or blackish fog caused by air pollution that contains soot particulates and the poisonous gas sulphur dioxide.
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 odor. [2]
Under the Dome (Chinese: 穹顶之下; pinyin: Qióngdǐng zhī xià) is a 2015 self-financed Chinese documentary by Chai Jing, a former China Central Television journalist, and Ming Fan, [2] the documentary director, her long-term working partner at CCTV, concerning air pollution in China.
Air pollution can occur naturally or be caused by human activities. [3] Air pollution causes around 7 million deaths each year. [4] [5] 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.
Smog towers or smog free towers (see below for other names) are structures designed as large-scale air purifiers to reduce air pollution particles . This approach to the problem of urban air pollution involves air filtration and removal of suspended mechanical particulates such as soot and requires energy or power.
Air pollution: from a pesticide factory: Prasoon Pandey and Piyush Pandey: 1999 Bigger Than Us: Various themes: Flore Vasseur and Melati Wijsen: 2021 Bill Nye: Science Guy: Global warming: David Alvarado and Jason Sussberg: 2017 Biùtiful cauntri: Pollution: toxic waste dumping in Southern Italy: Esmeralda Calabria and Andrea D'Ambrosio 2007 ...
Dust kicked up by vehicles traveling on roads is a significant source of harmful air pollution. [8] Road dust consists of deposits of vehicle and industrial exhaust gas , particles from tire and brake wear, dust from paved roads or potholes , and dust from construction sites.
Ultrafine particles (UFPs) are particulate matter of nanoscale size (less than 0.1 μm or 100 nm in diameter). [1] Regulations do not exist for this size class of ambient air pollution particles, which are far smaller than the regulated PM 10 and PM 2.5 particle classes and are believed to have several more aggressive health implications than those classes of larger particulates. [2]