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In this study, based on the total coliforms (TC) and total bacteria (TB) detected in rural drinking water resources (RDWR) of Ya'an, and applying exponential model and β-Poisson model of “low microbe content risk assessment”, the quantitative evaluation of risk associated with TC count and TB in 221 water samples was developed. Results showed the annual risk values (ARV) of all the water samples were...
An annual study had been conducted on the physical and chemical factors, as well as water quality assessment, of 4 different types of reservoirs along the Yangtze River watershed in China during the period of 2006–2008. The reservoir water temperature range during the year was 5.5–31.0 °C, an average of 16.5 °C; There was obvious temporal and spatial variation in DO, DO was sufficient in all water...
According to the status in the Fenhe River water quality and the river water quality management objectives of each functional area, we focused on the major pollutants (NH3 - N and COD being typical), selected the one-dimensional water quality model and the appropriate parameters, and calculated the driest month average flow of the river under a different guaranteed rate between 1994 and 2008. The...
The eco-environmental influence of the agriculture is one of the research hotspots of environmental protection science. The agriculture of the protected area for water supply has obvious contradiction with water resource protection, and its negative influence of eco-environment should not be neglected. The article took Yunlong reservoir of Kunming city as a example, and studied the eco-environmental...
This paper studied the change of nutrient aquatic environmental capacity of Qingshuihai lake before and after the water diversion project. The volume of the lake will be enlarged from 117.65 million cubic meters to 148.61 million cubic meters after the water diversion project is implemented. The research adopt the lake water environmental capacity model recommended by the national water environmental...
The impact brought by hydropower cascade development on the environment is increasingly significant. At the sustainable development request, the traditional environmental impact assessment exposes many shortcomings, while it has defects of its own. Thus the cumulative environmental effects assessment is introduced here. The comparison between traditional and cumulative environmental effects t assessment...
With the global climate change and impact of human activities on water resources, ecological security problems of water have attracted increasing attention. Based on investigation and study of ecological security situation of water resources in Shandong province, many problems are found out. For example, deteriorating water quality, excessive exploitation of groundwater, serious intrusion of sea water,...
The population in the protected area for water supply has obvious influence to water resource protection, and environmental problems related to population factor should not be neglected. The article studied the environmental problems in the protected area for water supply of Yunlong Reservoir of Kunming City by means of field work, statistics analysis, forecast analysis, quantitative and qualitative...
After the completion of the Three Gorges dam, a 30 m high water-level-fluctuating zone (WLFZ) will appear along the banks, and will form a seasonal wetland ecosystem. According to the program of storing water in the Three Gorges reservoir, the main ecological and environmental problems probably incurred in WLFZ are discussed, such as formation of contaminated belt along banks, appearance of epidemic...
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