Ground water contamination a pressing cause for concern
For residents in East and South China, the safety of their drinking water has become a big concern, as the drinking water in 44 cities of the 23 provinces in these regions has been found to contain nitrosamine, according to a report based on a three-year investigation by the School of the Environment at Tsinghua University.
It is thought that nitrosamine may be a cause of cancer in the human digestive system. One of the experts involved in the study said that nitrosamine is quite like PM2.5, the particles less than 2.5 microns in the air that are harmful to people's respiratory systems.
Although further investigation is still needed to find out the relationship between the chemical and stomach cancer or other cancers of the digestive system, the results of the study serve as a reminder that much still needs to be done to make sure that our water is safe to drink.