In shallower lakes the integrating tube sampler gave significantly higher estimates of mean concentrations than other methods due to the increase in volume of the unmixed hypolimnion which reduced the depth of the well mixed epilimnion to less than the tube length. For national survey purposes ...
Indian Standard -Methods of sampling and test (physical and chemical) for water and wastewater, Part 48, Mercury, (First Revision), Second Reprint January 2002.Bureau of Indian Standard: 3025 - Reaffirmed Methods of Sampling and Test (Physical and Chemical) for water and wastewater: Part 10 ...
Sampling for water quality 来自 osti.gov 喜欢 0 阅读量: 27 作者: WR Curtis 摘要: The objective of this paper is to provide some basis for designing a sampling program that will satisfy current and anticipated needs for data on the chemical quality of water affected by surface mining. ...
Evaluation of sample quality from different sampling methods in Finnish soft sensitive clays The determination of reliable geotechnical parameters from laboratory testing is highly dependent on sample quality. Over the past decades, undisturbed sam... Selnp,Lnsivaara,D'Ignazio - 《Canadian Geotechnical ...
Sampling Design Methods For Groundwater Modeling Under Uncertainty A sampling network design model is presented that evaluates the trade-off between the varying costs of different types of data and the contribution of thos... Wagner,Brian J. - 《Water Resources Research》 被引量: 180发表: 1995...
Methods Dataset sources Samples were opportunistically amassed from groundwater researchers worldwide (Supplementary Table2). In the field, these samples were collected using traditional groundwater-sampling techniques—namely, digging pits or inserting piezometers into beach faces perpendicular to the shorelin...
Devices and methods for sampling and measuring constituents of biological fluid A sampling device biological fluid constituents and concentration measurement, said device comprising: (a) an array of micro-needles, each micro-needle access opening; (B) a layer of hydrophilic gel material over the arra...
Of these, passive sampling methods have shown much promise as tools for measuring aqueous concentrations of a wide range of priority pollutants. Passive samplers avoid many of the problems outlined above, since they collect the target analyte in situ and without affecting the bulk solution. ...
BEIJING, Sept. 8 (Xinhua) -- Chinese scientists have developed a new method for on-site water pollutant monitoring, which is more convenient and efficient than traditional sampling methods. Pollutants such as medicine and wastewater generated from industry production pose a threat to the water safet...
(about 100-120 cm depth) near the EC in the depression. In order to avoid the impact of creek and depression, epikarst spring was chosen in the upper area of catchment. The precipitation sampling devices in the present study are similar to those used by IAEA and consist of a 150-mm...