Cadmium pollution** Drinking water source in Liuzhou, Guangxi

The emergency command headquarters for emergency environmental accidents in Longjiang River in Liuzhou, Guangxi revealed that the sources of the cadmium pollution incident had been cut off. At 12 o'clock on the 29th, the concentration of cadmium in the Liumeitan Hydropower Station in Liuzhou exceeded the standard by 8 times. It is expected that with the close proximity of the pollution team on the next two days, the situation in Liuzhou will become severe.

The source of the pollution has been cut off in Liuzhou City, Guangxi emergency response headquarters to deal with environmental emergencies revealed that the cause of the pollution of the cadmium pollution incident has been cut off.

The command spokesman and director of the Liuzhou Environmental Protection Bureau Gan Jinglin told the reporter that the Guangxi Zhuang Autonomous Region Environmental Protection Bureau's monitoring showed that the source of this pollution was located in Lalang Reservoir in Hechi, Guangxi, and the current cadmium concentration monitoring data indicated that it had reached the standard. The source of the pollution caused by this cadmium pollution incident has been intercepted, and no new sources of pollution have entered.

Experts analyzed that the major pollution groups polluted were still near the Luodong Reservoir in Yizhou and were moving downstream. The cadmium concentration in the water quality of the Luomaitan hydropower station in Liucheng County on the Longjiang River in the upper reaches of Liuzhou City has also been controlled at about 5 times. Due to the long pollution belt, it is still possible to cause serious damage to drinking water safety in Liujiang.

After scientific disposition, the monitoring data at 6:00 on the 29th showed that the cadmium concentration at each section of the drinking water source protection site in Liuzhou still complied with the national standard, but some sections were close to the critical value.

The cadmium concentration in the key power station in Liuzhou exceeded 8 times. The reporter learned from the on-site command of the Peiamitan Hydropower Station in the upper reaches of Liujiang River on the 29th that as of 12:00 that day, the cadmium concentration of the Peiyangtan Hydropower Station exceeded 8 times, and it is expected that with the peak of the pollution team on the next two days, cadmium The concentration will also change, and the situation of prevention and control will become severe.

The Qiemitan hydropower station is located in the Liucheng section of Longjiang. Tang Zhenguo, deputy magistrate of Liucheng County, introduced that the Pelican Hydropower Station is the key point for handling pollution incidents in Longjiang and is the only place that can fight the water quality security defense in Liuzhou. “After the river is down here, there is a flat river. It is here that the safety of drinking water in Liuzhou can be maintained.”

At the scene, the reporter saw that the number of squads and firefighters involved in unloading and feeding materials had increased from the previous day. Liucheng County Party Committee Sun Liming said in an interview at the scene that currently staff members are feeding materials in accordance with established programs. The flow of power station drainage is also controlled strictly according to expert guidance. The responsible person of Liucheng County conducts on-site command and coordination of 24-hour on-duty shifts. A series of supporting measures can guarantee the drinking water safety of Liuzhou citizens.

According to the emergency command of the Longjiang River Emergency Response Center in Liuzhou City, the leader of the pollution team of Longjiang cadmium pollution incident entered the Liuzhou water source protection site on the morning of the 29th and was once close to the national standard threshold, but it is still within the control range.

Seriously affecting the lives of local fishermen. As contaminated water bodies enter Longjiang from the Longjiang River, the front of the upper reaches of the Liujiang River once detected slight contamination of cadmium, and the Liuzhou government has issued a notice that residents of the river sections above the Liutang River in Lujiang will temporarily suspend access to the river. Section of river water as drinking water. The production and livelihood of some “water people” fishermen who take boats as their homes and live on water are seriously affected.

“Some people came to the house two days ago to inform us that the Longjiang water was contaminated. Let us not drink the water flowing from the Longjiang River. We had to take a boat to get water from the river.” Fishermen along the coast of Fengshan Town, Liucheng County, Xie Shuisheng family of five people Live in the boat, the original food and drink are the water in the river. Sudden pollution has added a lot of trouble to their lives. Xie Shuisheng said that before the danger was lifted, they dared not rush to collect water nearby.

According to the plan, after the concentration of cadmium in the river reaches a certain extent in Liuzhou, the safflower plant in the lower reaches of Liuzhou will be flooded. If the safflower power station discharges water, the water level in the upper reaches of the river will drop significantly, and the watercraft will only have to take emergency measures.

According to experts, the Honghua hydropower station has a storage capacity of about 500 million cubic meters, which will greatly dilute the concentration of cadmium in the water, and there will be no excessive cadmium concentration in the Liujiang section below the Honghua hydropower station.

On the shore, Ms. Ruan gave up her family's work and looked anxiously at the patrol boat. “When the gate is opened, how much does the water drop? If we drop more, we will drive the boat to the center of the river.”

Water fishermen live on ships for a long time and have a certain ability to cope with the dangers that occur in the river section. However, in the face of the severe cadmium exceeding incident, most people still have some concerns. They do not know how long this pollution event can pass and whether the pollution will affect the fish in the river.

The pollution source finally determined that the problem was encountered. As pollution incidents further fermented on the network, some netizens posted that the incident of the dead fish in the Longjiang River occurred on the 15th. The local company announced only one suspected company that has been initially identified and it has passed more than 10 days. Why not take relevant penalties and hope that the local authorities will announce the investigation of pollution sources as soon as possible.

In response, the Guangxi Hechi Emergency Response Center reported on the 28th that at present, the final determination of the pollution source in the excessive cadmium pollution incident in Longjiang, Guangxi Province has encountered some difficulties. Due to many reasons such as karst landforms, the current investigation of pollution sources still needs to be further confirmed.

Wu Haiyu, director of the Hechi City Environmental Protection Bureau, explained that after continuous screening, the dumping site of Guangxi Jinhe Mining Co., Ltd. has not reached the national standard and has become one of the suspected sources of pollution. However, this company is completely recognized as a source of pollution, and experts still need to obtain it. More sufficient evidence, but also need to investigate other companies one by one in order to fully determine the source of pollution.

Wu Hailu said that the current inspection work encounters great difficulties. The terrain of Hechi City is complex and there are many underground caverns. It is easy for enterprises to discharge pollutants into the river through underground caves. It is very difficult for experts to collect evidence. In addition, because the environmental protection department discovered that Longjiang was contaminated relatively late, it also made it difficult to collect evidence. At present, mobilization of environmental protection and inspection backbone forces has been conducted to Hechi to carry out investigations. Experts in geological, karst, water conservancy, hydrology and environmental protection fields have also come to Hechi to provide technical guidance for the investigation of pollution sources.