110 firms face penalties for failing to reduce pollution…
Because DAQ has been actively working to reduce larger particulates (PM 10) in the state in recent years, the Division has already implemented a number of emissions control strategies. These strategies have resulted in significant particulate reductions. Historically, the primary reduction strategies have been directed at industrial emissions. But with PM 2.5, industry currently contributes about eleven percent of the pollution. This leaves reductions in mobile and area sources as the critical focus areas for reducing the emissions that form PM 2.5. Mobile sources are on-road vehicles. Area sources are small industrial and commercial sources that emit less than 100 tons per year of pollution and activities generally associated with urban living, including gas and wood stoves, dry cleaning, gas stations, and water treatment facilities.
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As part of its pollution reduction planning for the PM2.5 State Implementation Plan (SIP), DAQ to reduce emissions from these mobile and area sources. Because the chemical reactions forming the majority of fine particulate pollution are complex and the emissions come from a wide variety of sources, finding solutions to the problem of high PM 2.5 in Utah's airsheds has proven complicated. It will take a concerted effort on the part of the public and small business to find ways to collectively reduce these emissions. A combination of small, individual reductions will be needed to achieve the large scale reductions necessary to address the state's PM2.5 challenge.
While many people assume that industry contributes the majority of the emissions that form PM2.5, mobile and area sources are by far the greatest sources of fine particulate pollution. The chart below, based on Division of Air Quality (DAQ) estimated emissions for 2010 for the four urbanized Wasatch Front counties (Salt Lake, Davis, Utah, and Weber) illustrates how mobile sources and area sources combined account for 89 percent of the emissions that contribute to fine particulate pollution along the Wasatch Front.
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The table below lists the some common BMP's to illustrate the capabilities of wetlands as compared to other urban run-off BMP's. Although they are listed individually, BMP's are normally employed in combination for greater pollutant reduction. Specific site characteristics such as soil permeability and drainage area will determine the BMP types and combinations that are most appropriate for each case.
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Best Management Practices (BMP's), as a general term, designate any method for controlling the quantity and quality of stormwater runoff. Typically, a BMP is considered to be either (1) a practice (routine procedure) that reduces the pollutants available for transport by the normal rainfall-runoff process, or (2) a device that reduces the amount of pollutants in the runoff before it is discharged to a surface waterbody. Urban BMP's are a set of controls designed to reduce the following pollutants in urban runoff: sediment, nutrients, heavy metals, bacteria, pesticides/fertilizers, oxygen-demanding substances which deplete dissolved oxygen (DO) levels in receiving waters (COD, BOD), oil and grease, and others.
Wetlands have an innate ability to reduce pollution
Wetlands have an innate ability to reduce pollution. The earliest modifications that were made to Restoration Park concentrated on enhancing this ability. Efforts to control nonpoint source pollution fall into two categories: reducing run-off and keeping run-off clean.
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The Utah Division of Air Quality (DAQ) issues action alerts when pollution levels are approaching levels that could impact health. These alerts are designed to be proactive, notifying residents in advance of pollution build-up so they can begin to reduce their emissions before fine particulate concentrations reach unhealthy levels.