The influence of roofing material on concentrations of pollutants in roof runoff waters and changes of pollution concentration in time were investigated. In field studies four roofing material types were taken into consideration: ceramic tile, bituminous membrane, asbestos tile, and zinc sheeting. Samples were collected from November 2007 to March 2008. Anions, cations, metals, PAHs, pesticides...

20070928 ......................... Aktiegolaget Volvo ............................. Ingersoll-Rand Company Limited ...... Blaw-Knox Construction Equipment Corporation. 20070932 ......................... Beacon Roofing Supply, Inc .............. North Coast Commercial Roofing Systems, Inc. North Coast Commercial Roofing Systems, Inc. 20070940 ......................... OCM Principal Opportunities...

1.0 Introduction .............................................................................................................................................................1 2.0 Sources of Urban Runoff Pollutants and Source Reduction Options.......................................................................1 2.1 Other Pollutant Contributions to the Storm Drainage System .....................

Extracts of soots obtained from various sources were applied to the skin of mice in an effort to identify carcinogens in these mixtures and to link these materials to the etiology of human cancer. Samples of coal chimney soot, coke oven materials, industrial carbon black, oil shale soot, and gasoline vehicle exhaust materials have been examined by this method. The studies reported here have bee...