Addressing Stressors to Riverine Waters Quality: The Case of the Nexapa River

A review of some of the stressors to river water quality shows that the inappropriate use of water in agriculture and the use of rivers as sinks for agricultural, industrial and domestic pollution are the main stressors of water quality. The above is aggravated by the effects of climate change on water availability. Often, authorities at all levels pay more or less attention to priority pollutants. However, the problem of pollution is accentuated by the massive use of many chemicals in our daily lives. These substances, which are in ppb and ppt concentrations, are the organic micropollutants. The above was addressed in the sub-basin of the Nexapa River, Puebla, Mexico. The results indicate that the excessive use of water in the irrigation and the transfer of highly polluted water from the Atoyac River, are the factors that condition the ecological flow of the river is not respected, which remains without water in several sections as well as the riverine water quality impairment.