Piles of Midwest 'petcoke' raising residents' ire

The images are startling. Billowing black clouds darken the daytime sky as wind-driven grit pelts homes and cars and forces bewildered residents to take cover.

http://dailyjournal.net/view/story/7b2ddd62400d4e6ba4885b65d64ce2e3/US--Petroleum-Coke-Neighborhoods/