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Dow in Michigan - Emissions


Chemical Emissions

Through continuous innovations and commitment to a cleaner environment, Michigan Operations has reduced its chemical emissions by more than 53 percent since the site initiated its 10-year environmental, health and safety goals in 1994. This trend is especially encouraging considering that measurement systems continue to improve and are more sensitive than ever.

Chemical Emissions

Emissions of Priority Compounds

Since 1994, Michigan Operations has made significant progress toward reducing emissions of priority compounds, achieving an almost 82 percent improvement. In 2006, our emissions remained below our goal, even though the figures show an increase year over year. Due to a heightened awareness and changes in emissions calculations, the reported emissions saw an increase.

Priority compounds consist of 29 chemicals, such as mercury, asbestos and benzene, which are tracked by the Environmental Protection Agency.

Emissions of Priority Compounds

Emissions of Volatile Organic Compounds (VOC)

Continued focus has led to a steady reduction of nearly 70 percent from levels reported in 1994.

Emissions of Volatile Organic Compounds (VOC)

Dioxin Reporting

Dioxin reporting is separated into three categories: air and water emissions, disposal via landfills, and total compounds destroyed through incineration. Each activity is strictly regulated by the Michigan Department of Environmental Quality (MDEQ).

Dow is working closely with MDEQ, EPA and the community to resolve issues surrounding dioxins and furans in the community. Activities and progress are regularly posted on our web site.

Dioxin — Air and Water Emissions

We are encouraged by the site’s recent performance in this area, which indicates steady emissions — at barely perceptible levels. In coming years we can expect this number to remain flat because industry is nearing the limit of its current detection capabilities. At this point, small, natural variations are expected because the detection limits are so low.

Dioxin Emissions — Air & Water TEQ

These values were not tracked prior to the year 2000

Dioxin On-Site Landfill — Disposal

Dow was granted a permit in 2002 by the Michigan Department of Environmental Quality to dredge the on-site tertiary holding ponds (T-ponds). This permitted activity has resulted in a significant increase in on-site landfill disposal for several years. While the amount of solids disposed of was down in 2006, compared to 2005, the dioxin content was higher and the 2006 figure reflects this. In 2006, kiln debris that was sent off-site for disposal was also included in the data.

Dioxin On-Site Landfill — Disposal

These values were not tracked prior to the year 2000