Atmospheric volatile organic compound measurements during the Pittsburgh Air Quality Study: Results, interpretation, and quantification of primary and secondary contributions pot

... measurements during the Pittsburgh Air Quality Study: Results, interpretation, and quantification of primary and secondary contributions Dylan B. Millet, 1,2 Neil M. Donahue, 3 Spyros N. Pandis, 3 Andrea ... S. N. Pandis, A. Polidori, C. O. Stanier, B. J. Turpin, and A. H. Goldstein (2005), Atmospheric volatile organic compound measurements during...

Ngày tải lên: 05/03/2014, 21:20

... B. J. Turpin, and A. H. Goldstein (2004), Atmospheric VOC measurements during the Pittsburgh Air Quality Study: Results, interpretation, and quantification of primary and secondary contributions, ... [1994] and Sander et al. [2002]. Vertical lines indicate the time period of the experiment. The modeled seasonal backgrounds were then fit to the lo...

Ngày tải lên: 05/03/2014, 20:20

... Correlations of acetylene and ethylene with MTBE at Guangzhou. The solid line is the regression line of the dots, and the area within the dashed lines is the 95% confidence interval. Acetylene and propane ... between propane and n-/iso-butane at Guangzhou. The solid line is the regression line of the dots, and the area within the dashed lines is the 95%...

Ngày tải lên: 14/03/2014, 20:20

... area of monoterpene-emitting species was high in the Southern Appalachians and the Pinelands of the southeastern coastal plain (Pines tend to emit mono- terpenes). Between the mid-1980s and the ... exceeded the decreases in heatwave AVOC emissions during the same period, as shown by the ratio of the changes in Fig. 3: averaged over all the grid cells in the r...

Ngày tải lên: 14/02/2014, 08:20

... the probe at the interface where the stem exits the packing gland and sample the stem circumference. Also, place the probe at the interface of the packing gland take-up flange seat and sample the periphery. ... precision means the degree of agreement between measurements of the same known value, expressed as the relative percentage of the average differ...

Ngày tải lên: 14/02/2014, 08:20

... (%). Results The microbial flora associated with volatile organic compound during spoilage of mango fruits were isolated and identied as seven species of bacteria and a species of yeast. These ... monocytogenes and Candida krusei respectively. The result of GC-MS analysis of diethyl ether extract obtained from healthy and spoilt mango revealed the presen...

Ngày tải lên: 05/03/2014, 20:20

... speciation profiles based on summer 1996 and later data only for use with the summer 2000 Central California Ozone Study. Of the profiles reported here, the summer 1999 and 2001 fuel and tunnel profiles ... University of California, Riverside, CA. EPA (1999). National Air Quality and Emissions Trends Report. U.S. Environmental Protection Agency, Office of Air...

Ngày tải lên: 05/03/2014, 20:20

... of the exhaust hood through an externally heated Teon PFA line. Reference air was sampled from the roof of the of ce building in which the instrument was housed. Although the reference air ... mm Pigsty The instrumental setup was installed in a neighbouring of ce building. The sample line ran up to the exhaust of a ventilation shaft in the roof where the...

Ngày tải lên: 05/03/2014, 21:20

... performed the acquisition and analysis of the data, designed the study and wrote the manuscript. TV aided in the data acquisition and data processing, performed part of the analysis and reviewed the ... was involved in the design of the study and reviewed the article. MH contributed importantly to the interpretation of the data and critically revise...

Ngày tải lên: 05/03/2014, 21:20

... (November 2000) “any organic compound in the indoor air of homes, offices and public buildings as well as organic compounds, which emit from construction materials and are detected in the test chamber” ... definition relates to Indoor Air Quality World Health Organisation (1989) “any organic compounds” - very volatile organic compound (VVOC) < 0 up to 5...

Ngày tải lên: 14/03/2014, 20:20