Warning: Salinity level of 4‰ is penetrating deep into inland areas.

On the morning of January 12th, information from the An Giang Provincial Meteorological and Hydrological Station predicted that a salinity level of 4‰ would penetrate deep into the inland areas of the Cai Lon, Cai Be rivers and Cai San canal in An Giang province in the early morning of January 16-18. This saltwater intrusion poses a risk to agricultural production, especially crops, so people need to proactively monitor the situation and take timely countermeasures.

The Kien River sluice gate in Rach Gia ward ( An Giang province) prevents saltwater intrusion and preserves freshwater for agricultural production in the Long Xuyen Quadrangle region. Photo: Le Huy Hai/TTXVN

According to forecasts, the highest daily salinity levels at Xeo Ro and Go Quao stations on the Cai Lon River; An Ninh and Minh Hoa stations on the Cai Be River; Thanh Loc station on the Cai San River; and U Minh Thuong station on the Lang Thu 7 River… will remain relatively stable from January 12-14. After that, the levels will rise slowly until January 18. The highest salinity levels will be 0.3-4.4‰ higher than the previous week. The highest salinity levels will occur between approximately 1 AM and 5 AM.

Forecasts indicate that on the Cai Be River in Binh An commune, salinity of 4‰ will penetrate approximately 7 km inland; salinity of 1‰ will penetrate approximately 10-12 km inland. On the Cai Lon River in Dinh Hoa commune, salinity of 4‰ is predicted to penetrate approximately 15-18 km inland; salinity of 1‰ will penetrate approximately 25-28 km inland. On the Cai San canal, from Vam Ba Lich, salinity of 4‰ is predicted to penetrate approximately 5 km inland; salinity of 1‰ will penetrate as far as Quang Bridge, Thanh Loc commune, An Giang province.

Sluice gate No. 1 in Vinh Thong ward (An Giang province) prevents saltwater intrusion and retains freshwater to serve agricultural production in the Long Xuyen Quadrangle area. Photo: Le Huy Hai/TTXVN.

The An Giang Provincial Meteorological and Hydrological Station has issued a Level 1 saltwater intrusion warning for the Cai Lon River area. It also warns residents in affected areas not to use bottom-dwelling water during high tide; and to check salinity levels before using river and canal water for production and daily life.

Salinity intrusion tends to increase in some rivers and canals in An Giang during the dry season, affecting agricultural production. The An Giang Department of Agriculture advises people to proactively monitor salinity levels, regulate water resources appropriately, and limit water intake when salinity exceeds permissible limits to reduce damage caused by salinity intrusion.

Sluice gate No. 3 in Hon Dat commune (An Giang province) prevents saltwater intrusion and retains freshwater to serve agricultural production in the coastal area of ​​Rach Gia - Hon Dat, north of National Highway 80. Photo: Le Huy Hai/TTXVN

According to the An Giang Provincial Meteorological and Hydrological Station, from January 5th to 11th, the water level in the upstream area of ​​the Mekong River will recede slowly. The highest water level will be 10-45 cm higher than the same period in 2025 and the multi-year average. In the Long Xuyen Quadrangle, the water level in canals and ditches will rise slowly, then recede rapidly by January 8th. The average water level will be 5-20 cm higher than the same period in 2025 and the multi-year average.

In the estuary area, water levels at the Xeo Ro station (Cai Lon River) rose rapidly due to tidal surges combined with rising water until January 8th. The highest tidal water level reached 106 cm, 6 cm above alarm level 3, on January 7th. The highest daily salinity at stations near the estuary showed a slow downward trend, remaining lower than the same period in 2025 by 7-11‰, and lower than the multi-year average by 1.5-4‰. At stations located further inland, salinity levels were low.

The Than Nong sluice gate in Hon Dat commune (An Giang province) prevents saltwater intrusion and preserves freshwater for agricultural production in the coastal area of ​​Rach Gia - Hon Dat, north of National Highway 80. Photo: Le Huy Hai/TTXVN

The highest salinity levels recorded from January 5th to the morning of January 11th were: on the Cai Be River in Binh An commune, salinity of 4‰ penetrated 6-7 km inland; salinity of 1‰ penetrated approximately 11 km inland near the Cai Be sluice gate. On the Cai Lon River in An Bien commune, salinity of 4‰ penetrated approximately 12 km inland; salinity of 1‰ penetrated approximately 18 km inland in Dinh Hoa commune. On the Cai San canal, salinity of 1‰ penetrated as far as Quang bridge, about 8 km from Vam Ba Lich.

Source: https://baotintuc.vn/xa-hoi/canh-bao-do-man-4-xam-nhap-sau-vao-noi-dong-20260112105141881.htm