Narayanan, Kannan Greener approaches to the measurement of polyaromatic hydrocarbons (PAHs) in unused and used crankcase motor oils from Malaysia. [electronic resource] - Environmental science and pollution research international 03 2018 - 7206-7211 p. digital Publication Type: Journal Article ISSN: 1614-7499 Standard No.: 10.1007/s11356-015-5403-9 doi