While this is acceptable for determining a maximum potential exposure or
identifying the extent of
Jimmy
Choo Shoes risk, there are limitations to this approach when
assessing the potential impact of any future abatement strategies or determining
the level of exposure outside the vicinity. This paper presents an approach in
which representative air quality assessments can be undertaken for an urban area
using the
Christian
Louboutin Supra Fifre Over The Knees Boots sliver number of
measurement sites. A novel methodology is described that involves site selection
to capture the maximum variance in measured pollutants, while minimizing
spatiotemporal autocorrelation between the selected sites. A case study is
presented for Yazd, Iran. Overall, the results show that the proposed
methodology can be effective and enable the long-term monitoring of air
pollution to be undertaken on a cost-
Christian
Louboutin Tall Platform Boots Black basis in urban areas. In
addition, there is the potential for the methodology to be utilized for other
forms of pollution (e.g., water, soil, and noise).[PUBLICATION ABSTRACT]In this
study, the concentrations of CO, non-methane hydrocarbons, NO^sub X^, SO^sub 2^,
benzene, toluene, ethylbenzene, xylene (BTEX), PM^sub 10^, and PM^sub 2.5^ were
continuously monitored before and after the fireworks display during the
traditional Lantern Festival from March 2-7, 2007 in Yanshui Town, Taiwan. Major
Christian
Louboutin Tall Platform Boots Black 13 in Yanshui Town were
surrounded by fireworks 13 km in length, with the display lasting for 45 min.
More than 200 small firecracker towers popped up randomly in town, resulting in
exceedingly inhomogeneous air quality until the end of display at 03:00 the next
day, March 5. During the fireworks display, the hourly concentration of PM^sub
10^ and PM^sub 2.5^ at Yanshui Primary School reached about 429 and 250 μg m^sup
-3^, respectively, which is 10 times the normal level, and 6 s values even went
as high as 1,046 and 842 μg m^sup -3^, respectively. Similarly, BTEX
concentration went up to about five to 10 times its normal value during the
fireworks display. As indicated by the distribution of submicron particle sizes,
the number of particles with a diameter less than 100 nm increased abruptly
during the event period. Metal components with concentrations of more than 10
times higher than the normal value at Yanshui Primary School were Sr, K, Ba, Pb,
Al, Mg, and Cu, in sequence. Among water-soluble ions, the content of K^sup +^,
Mg^sup 2+^, and Cl^sup -^ increased the most, all of which were related to the
materials used in the fireworks.
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