This paper considers how actions to slow atmospheric accumulation of greenhouse gases from fossil fuel use could also reduce "criteria" air pollutants (as defined in the Clean Air Act) in the U.S. The benefits that result would be "ancillary" to greenhouse gas abatement. Moreover, these benefits would tend to accrue in the near term, while any benefits from reduced climate change mostly accrue ...

I n the late 1980s, there was growing concern in the United States and other countries that acid precipitation—the result of emissions of sulfur dioxide (SO2) and, to a lesser extent, nitrogen oxides (NOx) reacting in the atmosphere to form sulfuric and nitric acids —was damaging forests and aquatic ecosystems, particularly in the US Northeast and southern Canada. In the United States, fl ue ga...

[1] Measurements of gaseous nitrogen and sulfur oxide emissions in young aircraft exhaust plumes give insight into chemical oxidation processes inside aircraft engines. Particularly, the OH‐induced formation of nitrous acid (HONO) from nitrogen oxide (NO) and sulfuric acid (H2SO4) from sulfur dioxide (SO2) inside the turbine which is highly uncertain, need detailed analysis to address the clima...

Co-combustion of biosolids with coal or other biomass fuel can play a significant role in combustion facilities for energy production and waste management policy context. This paper presents the results of an experimental study to investigate the use of biosolids for co-combustion with wood pellets in a wood pellet stove. Fuel property, gas emissions and stove efficiency are compared. In regard...

A key question in developing effective mitigation strategies for ozone and particulate matter is identifying which source regions contribute to concentrations in receptor regions. Using a direct approach with a regional, multiscale three-dimensional model, we derive multiple sourcereceptor matrices (S-Rs) to show interand intrastate impacts of emissions on both ozone and PM2.5 over the eastern ...

For years economists have urged policymakers to use market-based approaches such as cap-and-trade programs or emission taxes to control pollution. The SO2 allowance market created by Title IV of the 1990 U.S. Clean Air Act Amendments represents the first real test of the wisdom of economists’ advice. Subsequent urban and regional applications of NOx emission allowance trading took shape in the ...

In order to investigate the factual air pollutant emissions from Henan’s power sector in 2010, SO2, NOx and PM emissions from 24 generating sets from 15 coal-fired power plants have been measured. It is shown that SO2 emission values from 22 of 24 generating sets conform to the requirements, which is causing by the high performance of the flue gas desulfurization system. Much higher NOx emissio...

The pilot-scale NOx and SOx simultaneous removal from boiler emission was performed using radical injection and chemical hybrid process. The radical injection is often called as indirect plasma (or remote plasma) and air radicals are produced at room temperature with less than 1/10 of the flue gas flow rate. The flue gas from the boiler was in the range of 450~1,470 Nm/hr, the gas temperature o...