Environmental Science/Air Quality

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Question
What is more harmful to air quality:
1)Emissions from wood burning fire pits and fireplaces, or

2)Emissions from bovine excrament

Answer
The answer to your question needs a frame of reference. Harmful to what or to whom?
The two types of emissions are really not totally comparable. Wood burning activities generate, mostly CO2, particulate, CO, and some other trace chemicals and compounds.
Bovine excrement generates methane, which is flammable in the right quantities.
Methane is a powerful greenhouse gas, much stronger than CO2, if that's the answer you are seeking, but if you consider health risks, the fireplace/fire pit emissions can kill in the right concentrations.
The other factor is the numbers. You are comparing apples to oranges, and the number of each is important. So, I can't answer your question without some numbers.
I would suggest that you go on the following website and research your question.
www.epa.gov/ttn/chief  look for Emission Factors. You may then apply them to your specific situation.

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David L. Russell, PE

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I`m a Chemical,Civil and Environmental Engineer and have a number of projects in all phases of the environment. I have worked in the chemical industry and am active in professional societies, and am currently on an industrial wastes committee for the Water Environment Federation, and have taught courses in remediation in the US and abroad. I have written one book on Remediation of petroleum Contaminated Sites, and have a second book on PRACTICAL WASTEWATER TREATMENT to be published by John Wiley in September, 2006. I've also written over 30 articles on various elements of environmental problems and cleanup. Most Recently, I have addressed a NATO Scientific and Techical Conference on Ecoterrorism, and have worked with the same group on remediation of sites contaminated with Chemical Warfare Agent materials and othe materials as well. . I can answer q`s about Chemical and Environmental Engineering, land development, air pollution, water pollution, soil and water cleanup, combustion, international environmental problems, industrial processes chemical processes. Civil and Environmental and Chemical Engineering. Overall, I have over 35 years of experience in this area. Note: I do not answer homework questions

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I love work in the third world and developing areas because it is challenging and one can get a sense of accomplishment.

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