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[33] [34] In Salt Lake County pollution levels reached the 'unhealthy category' and even the normally healthy population was at risk for negative health impacts. [35] On August 6 in Salt Lake City smoke originating from the Dixie Fire and other fires in west coast states caused the PM 2.5 level to spike to over 100 mg m −3 , more than 3 times ...
Although evidence of environmental loading of salt has been found during peak usage, the spring rains and thaws usually dilute the concentrations of sodium in the area where salt was applied. [10] A 2009 study found that approximately 70% of the road salt being applied in the Minneapolis-St Paul metro area is retained in the local watershed. [16]
Sea spray droplets alter the air-sea momentum fluxes by being accelerated and decelerated by the winds. [11] In hurricane-force winds, it is observed that there is some reduction in the air/sea momentum flux. [10] This reduction in momentum flux manifests as saturation of air/sea drag coefficient. Some studies have identified spray effects as ...
In other words, industrial air pollution sources located at altitudes well above sea level must comply with significantly more stringent air quality standards than sources located at sea level (since it is more difficult to comply with lower standards). For example, New Mexico's Department of the Environment has a regulation with such a ...
The EPA elected to not modify the Pb NAAQS further, but decided to instead focus on the 1991 U.S. EPA Strategy for Reducing Lead Exposure. The EPA concentrated on regulatory and remedial clean-up efforts to minimize Pb exposure from numerous non-air sources that caused more severe public health risks, and undertook actions to reduce air emissions.
Sea salt aerosol, which originally comes from sea spray, is one of the most widely distributed natural aerosols. Sea salt aerosols are characterized as non-light-absorbing, highly hygroscopic, and having coarse particle size. Some sea salt dominated aerosols could have a single scattering albedo as large as ~0.97. [1]
[15] [16] Table salt is more processed than sea salt to eliminate minerals and usually contains an additive such as silicon dioxide to prevent clumping. [15] Iodine, an element essential for human health, [17] is present only in small amounts in sea salt. [18] Iodised salt is table salt mixed with a minute amount of various salts of the element ...
Air pollution can cause diseases, allergies, and even death; it can also cause harm to animals and crops and damage the natural environment (for example, climate change, ozone depletion or habitat degradation) or built environment (for example, acid rain). [2] Air pollution can occur naturally or be caused by human activities. [3]