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held the same view

Carry a small, opaque mini bag that fits in your pocket or backpack

doi: 10.1016/j.envres.2017.08.037 90

Im pretty sure Ben Rappaport had a book which showed many of these remarkable pieces

The solutions are hidden so that we avoid spoilers on the rest of the puzzle

Background Indoor Air Contaminants Mainstream and Sidestream Cigarette Smoke Properties and Measures of Environmental Tobacco Smoke General Sampling and Analysis Considerations Field Studies - Particulate Matter Field Studies - Nicotine Field Studies - Carbon Monoxide Field Studies - Oxides of Nitrogen Field Studies - Formaldehyde Field Studies - Volatile Organic Compounds Field Studies - Trace Constituents Appendices.