Air pollution in my home?

Cover title.

Air sampling network:

Mode of access: Internet.

An Air monitoring survey design for toxic air pollutants : final report /

"ILENR/RE-AQ-89/05."

The prospect for controlled trading of air pollution rights in the metro-east area of Illinois /

Cover title: Prospects for controlled trading of air pullution rights in the metro east area of Illinois.

Total suspended particulate analysis at Granite City / prepared by Ambient Air Monitoring Section.

Cover title.

Air resource management : what we have been doing--.

"R6-NR-TP-14-96."

Where to find State plans to clean the air /

Cover title.

Air pollution control in California: annual report.

Mode of access: Internet.

Air pollution translations: a bibliography with abstracts.

Mode of access: Internet.

Clean Air Act Amendments of 1983 : hearings before the Committee on Environment and Public Works, United States Senate, Ninety-eighth Congress, first session, on S. 768 ....

"February 24, 1984"--Pt. 2.

Clean Air Act : ozone and particulate matter standards : hearings before the Subcommittee on Clean Air, Wetlands, Private Property, and Nuclear Safety and the Committee on Environment and Public Works, United States Senate, One Hundred Fifth Congress, first session.

Shipping list no.: 98-0052-P (pt. 1), 98-0155-P (pt. 2).

National Air Toxics Information Clearinghouse : bibliography of selected reports and Federal register notices related to air toxics : index, 1990 : final report /

"EPA-450/3-90-014a."

High-pressure adsorption of supercritical gases on activated carbons: An improved approach based on the density functional theory and the bender equation of state

Adsorption of nitrogen, argon, methane, and carbon dioxide on activated carbon Norit R1 over a wide range of pressure (up to 50 MPa) at temperatures from 298 to 343 K (supercritical conditions) is analyzed by means of the density functional theory modified by incorporating the Bender equation of state, which describes the bulk phase properties with very high accuracy. It has allowed us to precisely describe the experimental data of carbon dioxide adsorption slightly above and below its critical temperatures. The pore size distribution (PSD) obtained with supercritical gases at ambient temperatures compares reasonably well with the PSD obtained with subcritical nitrogen at 77 K. Our approach does not require the skeletal density of activated carbon from helium adsorption measurements to calculate excess adsorption. Instead, this density is treated as a fitting parameter, and in all cases its values are found to fall into a very narrow range close to 2000 kg/m(3). It was shown that in the case of high-pressure adsorption of supercritical gases the PSD could be reliably obtained for the range of pore width between 0.6 and 3 run. All wider pores can be reliably characterized only in terms of surface area as their corresponding excess local isotherms are the same over a practical range of pressure.

Evaluation of performance reference compounds in polyethylene-based passive air samplers

Polyethylene-based passive air samplers (PSDs) were loaded with performance reference compounds (PRCs) and deployed in a wind tunnel to examine the effects of wind speed on sampler performance. PRCs could be loaded reproducibly into PSDs, with coefficients of variation only exceeding 20% for the more volatile compounds. When PSDs were exposed to low (0.5-1.5 m s(-1)) and high (3.5-4.5 m s(-1)) wind speeds, PRC loss rate constants generally increased with increasing wind speed and decreased with increasing sampler/air partition coefficients. PSD-based air concentrations calculated using PRC loss rate constants and sampler/air partition coefficients and air concentrations measured using active samplers compared closely. PRCs can be used to account for the effect of differences in wind speeds on sampler performance and measure air concentrations with reasonable accuracy. (c) 2006 Elsevier Ltd. All rights reserved.