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Ten of 13 metropolitan areas had more monitoring sites that had a chloride sample result exceeding 230 mg/L during cold-weather months than during warm-weather months.
USGS chloride sample results from streams near metropolitan areas were retrieved from 1969 to 2008 for assessment of potential road-salt influence throughout the country and to provide context for the more intensive Wisconsin study results.
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Poly vinyl chloride) samples spiked with known quantities of the studied dyes were prepared.
Four calcium chloride samples and two commercial milk products have been analyzed with this microfluidic chip by fluorescent intensity scanning.
97 % of chloride samples are below around 300 mg L−1 which is very normal for groundwater in this region.
All the chloride samples are found under the BIS (1991) and WHO (1993) limit of chloride (1000 mg/L. The range of nitrate concentration (Fig. 11) varied from 29 220 to 33 162 mg/L during pre-monsoon and post-monsoon, respectively.
Use of this electrolyte system with the new separation device allowed chloride samples to be analysed in under 100 s, with a limit of detection (LOD) calculated to be 2.2 mg l−1.
Sealants are field tested on bridges for performance by chloride sampling cores, drill dust samples, water flooding of the treated deck areas to check water leak, core tests to determine the depth of sealant penetration, use dissection/stereo microscopes to determine resin depth and fluorescent, and long-wave UV lighting.
Although chloride sampling has been included in previous evaluations of urban streamwater quality (21), water-quality sampling did not specifically focus on periods of winter runoff and may not fully represent the severity of road-salt influence.
Pd(1 0 0) and Pd(1 1 1) were the major palladium crystallite orientations in these samples, but a larger amount of low coordination sites located on Pd(1 0 0) faces was observed for the ex-chloride sample.
A two-fold decrease of dispersion was obtained to ex-chloride sample, while a two-fold increase to ex-nitrate and the same dispersion to ex-acetylacetonate samples were otherwise observed.
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