- IceHogs squeak by Grand Rapids behind strong Leighton showing
- Celebrate Dia de los Muertos at Riverfront Museum Park campus Nov. 1
- Lee Hamilton: Some thoughts on governing
- Top of Illinois Veterans Stand Down Oct. 31 in Rockford
- CUB shares list of worst customer horror stories
- Park District receives Governor’s Sustainability Award
- Park District’s ‘Ties & Tennies’ fund-raiser Nov. 14; deadline Nov. 6
- Nov. 2 concert celebrates release of Jodi Beach’s sixth recording
- Healthy Halloween Party Nov. 1 at U of I College of Medicine at Rockford
- Three local NFL Flag Football teams head to regional competition
How much hydrogen sulfide is safe?
Editor’s note: This letter is addressed to two Winnebago County Board members.
Ms. Owano and Mr. Horstman:
From what I have heard concerning the public meeting for the William Charles asphalt plant, the mentioning of the very toxic gas hydrogen sulfide generated by an asphalt plant was curtailed. This does not reflect the “Good Neighbor” attitude projected by William Charles. Shame on you if you vote “yes.”
The same ATAST study estimates that the nearby APAC hot-mix asphalt plant, typical of the 140-plus asphalt plant located across the state, emits hydrogen sulfide at 0.7 pounds/hour. Material Safety Data Sheets for asphalt plants list hydrogen sulfide as a hazardous ingredient of common hot mix asphalt (http://www.graniterock.com/products/msds/hotmixasphalt.htm):
Since the EPA recommends a chronic RfC for hydrogen sulfide of 1ppb, ask William Charles how many cubic meters of air would be contaminated with hydrogen sulfide if just 1/100th of that amount was released into the environment during an eight-hour workday. What would the answer be when they run 24 hours/day?
Thank you for your “NO” vote to especially protect the health of children.
From the Oct. 5-11, 2011, issue