VietNamNet Bridge – Vietnam’s surface water is plagued by concerning problems including depletion and large scale pollution.

With its network of criss-crossed rivers—including 13 major river systems covering an area of 10.000km2—Vietnam’s surface water resources account for around 2 percent of the world’s total river flow.

International water resource organisations recommend limiting their exploitation to a maximum of 30 percent of their flow. In reality, most of Vietnam’s Central and Central Highland provinces are exploiting over 50 percent of their rivers’ flow.

Ninh Thuan Province even exploits 80 percent of local flow.

The excessive resource exploitation has seriously degraded the quantity and quality of water resources in the basins of major rivers like the Red River, the Thai Binh River, and the Dong Nai River.

Climate change’s compounding impact has affected the volatility of Vietnam’s rainy season, increasing the probability and severity of both drought and flooding.  

In recent years, the rainy season has usually ended early, causing droughts in many regions across the country. Water resource depletion is particularly severe in the Central, Central Highland and Southern regions.

Many industrial zones, factories, and urban areas discharge waste water into lakes and rivers, leaving parts of the country with water rendered unusable through contamination.

Industrial zone waste water is a particularly serious threat to the health of Vietnam’s surface water.

The agriculture sector is the country’s highest water user and contributes a major proportion of national waste water.

Due to excessive use, an average of 20–30 percent of agricultural plant protection chemicals and fertilizers will eventually end up in surface water and accumulate in the soil, contaminating the soil eventually.

Most towns currently have no waste water treatment systems. Residential areas, tourist sites, and even handicraft producers all discharge waste water into rivers and lakes, contributing to the pollution of aquatic systems in Vietnam’s urban and suburban areas.

Source: VOV