Concentration of dimethylnitrosamine in the air of smoke-filled rooms

Simultaneous Adsorption and Electrochemical Reduction of N-Nitrosodimethylamine Using Carbon-Ti4O7 Composite Reactive Electrochemical Membranes

“…As a result, the EPA has established a 10 –6 cancer risk at the exposure concentration of 0.7 ng L –1 , and the California Department of Health Services has set a notification level of 10 ng L –1 for NDMA in drinking water . The occurrence of NDMA is widespread, and it has been found in air, soil, food, and surface water and groundwater. , NDMA can form through various oxidation processes, most notably as a disinfection byproduct during drinking water and wastewater treatment. , …”

Lung cancer due to passive smoking - a review

“…Related to the gaseous phase of ETS, small increases in the concentrations of carbon monoxide (CO), nitrogen dioxide (NO 2 ), and acrolein have been measured in rooms with smokers [26,28,47,65,70,81,86]. The concentration of some genotoxic compounds, such as benzene [35,36,49,65,72,90] and nitrosodimethylamine (NDMA) [58,60,80] are also increased in rooms with smokers. In a few and not representative measurements, carried out for example in beer halls, bars and night-clubs, rather high NDMA values, up to 240 ng/m 3 , have been found (15).…”

Health Effects of Involuntary Smoking: Impact on Tobacco Use, Smoking Cessation, and Public Policies

“…[64][65][66] The amount of detectable nitrosamines in environmental tobacco smoke, however, is extremely low. 67 Nitrosamines are found in nontobacco sources, including environmental air free of tobacco smoke, many foods, and often in water supplies, usually above concentrations encountered in tobacco smoke. 68 ' 69 Nitrosamines, in the concentrations found in mainstream and sidestream smoke, have not been demonstrated to be carcinogens in humans; their concentrations in environmental tobacco smoke, at hundred-to thousand-folds less, can hardly represent a carcinogenic factor in the health of passive smokers.…”