An important concern of the current environmental movement is the quality of water that we drink. Nowhere has this matter received more attention than in Pittsburgh, where citizens have expressed widespread apprehension over the healthfulness of the drinking water. The issue of clean water, however, has a long history in Pittsburgh, as in other cities, and this article will discuss the manner i...

In the context of water resource management and pollution control, the characterization of water quality impairments and identification of dominant pollutants are of critical importance. In this study, water quality impairment was assessed on the basis of 7 hydrochemical variables that were monitored bimonthly at 17 sites in 2010 along the rural-suburban-urban portion of the Wen-Rui Tang River ...

The Red Dog Zn-Pb deposits are hosted in organic-rich mudstone and shale of the Mississippian Kuna Formation. A complex mineralization history is defined by four sphalerite types or stages: (1) early brown sphalerite, (2) yellow-brown sphalerite, (3) red-brown sphalerite, and (4) late tan sphalerite. Stages 2 and 3 constitute the main ore-forming event and are volumetrically the most important....

The runoff and sediment of large rivers usually come from different source areas, which make different contributions to the sediment flux into the sea. This has been studied with the example of the Yellow River in China, whose suspended sediment flux into the Bohai Sea accounts for 19.4% of the world total. The drainage basin of this river can be divided into four major water and sediment sourc...

Natural organic matter (NOM) in source water originated from Luan River and Yellow River, North China was isolated and fractionated with XAD resins and ultra-filtration membranes. The raw water samples and fractions were disinfected with sufficient monochloramine to determine their N-nitrosamines formation potentials. Fluorescence Excitation-Emission Matrix (EEM), molecular weight (MW), dissolv...

In large countries with sharp temporal and spatial variation in water resources, interbasin water transfer projects seem to be an ultimate solution to ease water shortage and secure a balanced economic development among different regions. However, such projects are prone to problems and controversies, and may challenge the established basin management, legal system and policy making procedure w...