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| Subject | Date Asked | Expert |
| Effect of Smoke on the Weather | 4/4/2011 | Rob Gibson |
| Q: I am a 12 year old six grader from Tegucigalpa,Honduras, Central America. I have noticed that our ... A: Apologies for not responding before now and thank you for your question. I have taken a look around ... | ||
| Automotive paint operation VOC control | 10/28/2010 | Dave Russell |
| Q: What are the most common methods/devices used in large-scale automotive paint operations to control ... A: The one I'm most familiar with was used by General Motors at their plants in New York, and Georgia. ... | ||
| Coal Handling Pollutants Monitoring | 9/25/2010 | Dave Russell |
| Q: I want to know the pollutant parameters that should be monitored during the Coal Handling Activity ... A: If they are hitting you with PM 2.5 and PM 10, plus the other things you mentioned, that's pretty ... | ||
| Coal Handling Pollutants Monitoring | 9/24/2010 | Dave Russell |
| Q: I want to know the pollutant parameters that should be monitored during the Coal Handling Activity ... A: Best guesses include the following: Direct dust emissions from various sources due to handling-- see ... | ||
| asbestos | 5/18/2010 | Rob Gibson |
| Q: I read that asbestos is in the air we breathe every day is that true ? A: The honest answer to your question is I don't know. Certainly in places where it is mined, parts of ... | ||
| Air Pollution | 5/10/2009 | Rob Gibson |
| Q: Rob Gibson, I have some questions How do factories affect air pollution? Exactly what gases affect ... A: Your questions How do factories affect air pollution? They produce emissions that may add to the ... | ||
| Air Purifiers | 3/26/2009 | Jacob Hunter (Environmental Assessment Services, Monterey Bay-Silicon Valley) |
| Q: I am in the market for a new air purifier for my home. I had the original Sharper Image tower and ... A: I do not like recommending specific products. Consumer reports often will rate air purifiers, their ... | ||
| Air pollution solution? | 1/31/2009 | Rob Gibson |
| Q: I live in the United States of America and i just recently moved to area with alot of air pollution ... A: I had a quick look round the www regarding your question and found the following: If they are doing ... | ||
| Coalescor and Separator | 1/31/2009 | Jay Hofmann (Trinity Consultants, Inc.) |
| Q: What is the deference between Coalescor and Separator in filtration systems? A: I am not sure I know a detailed technical answer to your question. However, I believe a coalescer ... | ||
| Carbon Monoxide Readings | 1/7/2009 | Rob Gibson |
| Q: We have a carbon monoxide that is beeping at us. The reading is 63 and we do not know what this ... A: I have a CO monitor myself. Its never gone off thank goodness but when I test it it is so loud my ... | ||
| Unleaded vs leaded Gas | 10/29/2008 | Jay Hofmann (Trinity Consultants, Inc.) |
| Q: My question is what are the pro and cons to both unleaded and leaded gas? A: There is no "pro" with leaded gas from an air quality perspective. Lead in the air is highly ... | ||
| car pollution | 9/29/2008 | Harold Garabedian |
| Q: how much do gasoline powered passenger automobiles contribute to the total air pollution in the us( ... A: Emissions from gasoline powered vehicles contribute to a host of air pollution concerns including ... | ||
| unleaded and leaded gas | 6/16/2008 | Dave Russell |
| Q: what is the difference between unleaded gasoline and leaded gasoline? A: Leaded gas was manufactured by using tetraethyl lead as an additive. The purpose of the additive was ... | ||
| res. air quality | 3/24/2008 | Jacob Hunter (Environmental Assessment Services, Monterey Bay-Silicon Valley) |
| Q: I hope you can help me with my question please. A year ago we had a high efficiency Carrier heat ... A: #1 get in touch wth your medical physician. #2 I'd get in touch with an American IAQ council ... | ||
| clean air | 3/23/2008 | Jay Hofmann (Trinity Consultants, Inc.) |
| Q: A few years ago I was in the Dominican Republic staying in my vacation home when all our ... A: The are many non-governmental organizations that attempt to pressure governments all over the world ... | ||
| bag filter/ bag house | 3/14/2008 | Harold Garabedian |
| Q: i am a mech engg. student from India & as a part of our final year syllabus i am doing a project ... A: The best (US) reference to address your question can be found at the USEPA website for exhaust ... | ||
| 1968 Triumph | 3/11/2008 | Harold Garabedian |
| Q: I have a 1968 Triumph Spitfire and have been told that it needs leaded gas only. How do we get this ... A: There is a lot of miss-information out there on the matter of using unleaded gasoline in an engine ... | ||
| Eco air for the future? | 2/27/2008 | Harold Garabedian |
| Q: I am a trend analyst in London and i am researching into how the future of gadgets and technology ... A: "Zero Waste" is more of a concept or philosophy of how to approach policies addressing wastes which ... | ||
| Eco air for the future? | 2/27/2008 | Harold Garabedian |
| Q: I am a trend analyst in London and i am researching into how the future of gadgets and technology ... A: Technologies of the future will address issues of (high) efficiency and sustainability; particularly ... | ||
| indoor exhaust fumes | 6/14/2007 | Jay Hofmann (Trinity Consultants, Inc.) |
| Q: Is it possible to monitor my home and find out if the exhaust I smell is reaching unhealthy levels? ... A: You can monitor your home for carbon monoxide inexpensively. Buy a CO monitor at your local ... | ||
| Indoor air quality: | 2/21/2007 | Jacob Hunter (Environmental Assessment Services, Monterey Bay-Silicon Valley) |
| Q: I think my question may be a little basic for your field but having discovered allexperts.com I am ... A: I will try my best to answer this as briefly as possible. The question you ask really requires an ... | ||
| Gasoil burning | 1/9/2007 | Dave Russell |
| Q: Greeting, I would like to know, How much CO2 will be emitted if we burn just 1 litr Gasoil? A: Gasoil is, in the US, referred to as diesel. The problem is that I can give you a theoretical ... | ||
| breakdown of sources of CO2 emissions in US | 12/2/2006 | Dave Russell |
| Q: I would like a breakdown of the sources of carbon dioxide emissions (from non-natural ... A: Rather than waste space and time in providing an answer that I would have to look up, let me point ... | ||
| Min Ventillation rate | 11/29/2006 | Dave Russell |
| Q: I have been reading your notes and thank you for the help to the guys. What is the min ventilation ... A: The governing set of standards you want to look at is from ASHRAE American Society of Heating ... | ||
| characteristics of air | 11/20/2006 | Rob Gibson |
| Q: i am a grade 5 learner in south africa. my teacher asked us in an exam what the characteristics of ... A: First of all I have no idea why you got the mark you did as I do not know the basis of the teachers ... | ||
| What is the Difference between Diesel, unleaded and leaded gas? | 11/15/2006 | Dave Russell |
| Q: Good day Mr. Rusell, I would just like to ask bout the difference of the three (diesel, unleaded and ... A: all 3 are hydrocarbons, so all 3 produce the same types of pollutants, except leaded gas. Gasoline ... | ||
| pollutant trapping and humidity | 3/21/2006 | Dave Russell |
| Q: Mr. Russell: Are air pollutants more easily trapped within a local area if the humidity is high? I ... A: Priscilla At the moment I am in Brussels. I am not available to many of the resources I need to ... | ||
| Large scale air cleaning | 2/9/2006 | Dave Russell |
| Q: I've been wondering now for some time if it wouldn't be possible to clean the smog or at least ... A: Yes it would, but you are talking about paul bunyon sized equipment. One of the ways under ... | ||
| Large scale air cleaning | 2/9/2006 | Harold Garabedian |
| Q: I've been wondering now for some time if it wouldn't be possible to clean the smog or at least ... A: The technology and systems required would be so large as to be technologically and financially ... | ||
| My Stuff Bedroom | 2/2/2006 | David Powner |
| Q: I have a question for you. You see below part of an E-mail that my friend sent me about calculating ... A: To measure the amperage is technically very simple. In practice, for most people, it is not so. You ... | ||
| My Stuff Bedroom | 1/27/2006 | David Powner |
| Q: I appreciate your help. Somethings that I did not mention. They claim that the machine does 84 ... A: I guess they mean up to 84 pints where the humidity is at saturation. You can get a temperature ... | ||
| My Stuff Bedroom | 1/26/2006 | David Powner |
| Q: From reading your area of expertise, it seems like you may be able to help me with my dilema. I ... A: . At first glance, I am puzzled. The Fujitronic seems to be about 50% more powerful than the ... | ||
| Printer Ink Exposure | 1/5/2006 | David Powner |
| Q: I'm a self-representing artist and publisher and working out of my home. I am reproducing prints of ... A: Where to begin? I would start by suggesting that to keep the room relatively fresh, you should be ... | ||
| Carbon monoxide | 11/25/2005 | David Powner |
| Q: Could you tell me how I could monitor my home for carbon monoxide and lead paints/radon. Also,I ... A: Depending upon where you are, you can readily obtain a low-cost CO monitor from general stores. ... | ||
| carbon monoxide | 11/22/2005 | Jay Hofmann (Trinity Consultants, Inc.) |
| Q: Could you describe how a person can monitor their home from carbon monoxide/lead paints, radon and ... A: You can buy relatively inexpensive monitors for both radon and carbon monoxide (CO). The CO ... | ||
| ash/dust removal | 11/3/2005 | David Powner |
| Q: Am a longtime user of firewood for heating my home and am entirely satisfied as such - except for ... A: I would first refer you to the following web page: ... | ||
| air pollution | 9/26/2005 | David Powner |
| Q: Is open trash burning legal in illinois? If so, what can be burned? A: As I'm based in the UK, I shouldn't have a clue, but I did a quick Google for "trash burning ... | ||
| Smelly window air-conditioner | 9/22/2005 | David Powner |
| Q: My air conditioner in my living room window smells when I turn it on. It smells moldy, or musty- ... A: I think you can be fairly certain that it's on its way out! It sounds very much as though the motor ... | ||
| Griess Saltzman Reagent | 9/18/2005 | Rob Gibson |
| Q: Rob Gibson, I am currently doing my IB Diploma at the Internantional School of Kuala Lumpr. To ... A: This web link is the best I could do ... | ||
| Purifying hydroxyl radicals | 6/15/2005 | David Powner |
| Q: I've been looking at buying an air purifier. Their is a purifier that claims it blows all the other ... A: Marcus... My personal knowledge is very limited on this specific subject. However (probably as you ... | ||
Answers by Expert:
Top Expert on this page
I can answer questions on industrial practice, emissions, and impacts of air pollutants. I`m also good on regulatory and policy questions, but have an admitted anti-regulatory bias.
I've been in consulting engineering for over 30 years.
Organizations
Am. Inst. of Chemical Engineers., Water Environment Federation
Publications
Too many to list here. I'm currently writing an editorial piece for PollutionOnLine.com once monthly on industrial perspectives on pollution control.
Education/Credentials
BS & MS in Environmental Engineering, Instructor for Am. Inst. of Chemical Engineers
Awards and Honors
Who's Who in Engineering

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