Assessment of non-traditional controls on ambient air quality /

"Project no. 10.090."

Coal & Illinois industry : the impact of the National Energy Acts of 1978 /

Doc. No. 79/33.

Direct and indirect emissions production by urban truck movement in the Chicago region /

"Project no. 10.082."

Economic impact of combined sewer overflow : regulation (rule 602) in Illinois /

"Project no. 20.137."

Economic impact of existing ammonia nitrogen water quality standard, IPCB chapter 3 rule 203(f) /

"July, 1981."

Economic impact study of proposed airport noise regulations, R77-4. Volume 4, economic analysis of O'Hare and Midway Airports /

Project no.: 30.017.

Economic impact of a suspension of Rule 203 as it applies to an unnamed tributary of the Vermilion River, Vermilion County, Illinois /

"Project no. 80.159."

Economic impact of allowing open burning in disaster areas, R78-2 /

"Project officer: Michael H. Friedman."

Economic impact of removing numerical limits on sound emissions to class C land, R76-19 /

"Project no. 30.014."

Economic assessment of resources recovery and utilization from coal fine wastes /

"Project no. 80.183."

Economic impact of changing the carbon monoxide emission limitations for steel mills, R78-1 /

Includes bibliographical references.

Economic impact of proposed regulation R77-12 (Rule 950) on wastewater sludge disposal in the State of Illinois /

Includes bibliographical references.

Economic impact of requiring maintenance/malfunction plans for air pollution control equipment, R79-3 /

Project no. 10.080.

Economic impact of proposed amendments to snowmobile noise regulations, R79-10 /

Bibliography: p. 12.

Effect of RACT II environmental controls in Illinois, R80-5 /

"August 1981."