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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.
There are air pollution experts who view smog filtration tower projects with scepticism. For example, Professor Alastair Lewis , Science Director at the NCAS , has argued that static air cleaners, like the prototypes in Beijing and Delhi, cannot process enough city air, quickly enough, to make a meaningful difference to urban pollution.
Specifically, to count as a legitimate view, a user must intentionally initiate the playback of the video and play at least 30 seconds of the video (or the entire video for shorter videos). Additionally, while replays count as views, there is a limit of 4 or 5 views per IP address during a 24-hour period, after which point, no further views ...
A new study by a leading medical journal finds that deaths from pollution have increased to 9 million people each year — roughly one of six annual deaths worldwide. Air pollution, contaminated ...
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.
An air pollution episode is an unusual combination of emissions and meteorology - usually low or stagnant winds and temperature inversion - that creates prolonged and widespread air pollution lasting two to seven days. Effects range from eye irritation to deaths across age groups. [1] Examples of air pollution episodes include: 1930 Meuse ...
This index pays particular attention to people who are sensitive to air pollution. It provides them with advice on how to protect their health during air quality levels associated with low, moderate, high and very high health risks. The AQHI provides a number from 1 to 10+ to indicate the level of health risk associated with local air quality ...
Air pollution measurement is the process of collecting and measuring the components of air pollution, notably gases and particulates. The earliest devices used to measure pollution include rain gauges (in studies of acid rain ), Ringelmann charts for measuring smoke , and simple soot and dust collectors known as deposit gauges . [ 1 ]