Marijuana users really enjoy strong weed, but would prefer that it came without paranoia, memory loss and impaired ability to function. That's according to a new report from the Global Drug Survey in partnership with The Huffington Post, which anonymously surveyed more than 38,000 users around the globe. All marijuana is not created equal. Effects can vary depending on the plant variety, cultivation, processing and blending.
Diesel exhaust particles and gases are suspended in the air, so exposure to this pollutant occurs. whenever a person breathes air that contains these substances. The prevalence of diesel-powered. engines makes it almost impossible to avoid exposure to diesel exhaust or its byproducts, regardless.
The black smoke is composed primarily of elemental carbon from incomplete combustion of diesel fuel and traces of engine lubricant. The exhaust of a typical diesel engine contains elemental carbon (soot), semi-volatile organic hydrocarbons, sulfates (primarily sulfuric acid), and water vapor.ncomplete combustion occurs and soot is formed when there is an overabundance of fuel (both diesel fuel and lube oil), insufficient residence time in the combustion zone, and/or non-availability of sufficient oxidants. Over-fueling is the primary cause of black smoke from the exhaust of a heavy duty diesel engine.