The hottest Jialing River pollution survey, more t

2022-08-16
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More than 200 tailings ponds in the upper reaches of the Jialing River pollution survey, such as "sword of Damocles"

encountered antimony pollution in 2015, diesel pollution in 2016, thallium pollution in 2017... Guangyuan City, Sichuan Province, located at the junction of Shaanxi, Gansu and Sichuan, as the dividing point in the upper and middle reaches of the Jialing River, has been suffering from cross-border import pollution in recent years, affecting the drinking water safety of hundreds of thousands of people in urban areas and towns along the river

as an important tributary of the upper reaches of the Yangtze River, Jialing River is an important drinking water source for more than 10 cities in Sichuan and Chongqing, and the ecological barrier strategy is of great significance. Recent investigations have learned that although the upper reaches of the Jialing River have been vigorously renovated, the ecological threat posed by more than 200 tailings ponds and a large number of mining and smelting enterprises still exists, and the risk of water pollution is like the "sword of Damocles" hanging overhead, which should not be taken lightly

during the visit, the cadres and the masses of the cities along the Jialing River Basin and relevant experts said that to break through the dilemma of cross-border pollution control, in addition to zero tolerance to crack down on environmental pollution violations and strict accountability of "emphasizing 'black growth' and neglecting environmental protection" cadres, we should also break the barriers of administrative divisions, speed up the construction of regional pollution prevention and treatment system and mechanism, and improve the ecological compensation mechanism, so as to effectively control cross-border pollution

[ecological Guangyuan is frequently "polluted"]

Jialing River is the first-class tributary of the Yangtze River. It originates in Feng County, Shaanxi Province at the northern foot of the Qinling Mountains and flows through Shaanxi, Gansu, Sichuan and Chongqing. It is the largest tributary of the Yangtze River Basin, and the water quality of the main stream is generally maintained at class II

Guangyuan is the first city where the Jialing River enters Sichuan. Although it is located in a concentrated and contiguous poverty-stricken area in the Qinling Bashan mountains, Guangyuan has resolutely restrained the development of graphene, coal mining and other mining industries in recent years, made great efforts to promote the construction of ecological barriers in the upper reaches of the Jialing River, and proposed the strategy of building a "famous ecological health tourism city in China". Under the tight financial situation, Guangyuan spent more than 800million yuan to renovate 19 black and odorous water bodies in cities, and achieved the coverage of all such plastic granulator equipment in sewage treatment plants in all counties and towns along the river, which caused serious environmental pollution; Invest more than 100million yuan to ban 14700 fish tanks in Bailong River, an important tributary of Jialing River, so that the water quality of Bailong River can reach class I. At present, the water quality of Guangyuan section of Jialing River is class II, the forest coverage rate of the whole city reaches 56.18%, and the number of days with excellent air reaches 94.7%

generally, the more upstream the river, the better the water quality. Guangyuan is located in the upper reaches of the Jialing River. Although "practicing internal skills hard" and taking the road of green development, it cannot "be alone". Due to imported pollution, Guangyuan has been "lying on the gun" frequently in recent years, and the drinking water source of Jialing River has been affected many times

on November 23, 2015, tailings leakage occurred in the tailings pond of Longxing antimony industry company in Xihe County, Longnan City, Gansu Province. About 25000 cubic meters of tailings were discharged into Xihan water and then into the Jialing River, causing the antimony content in the section of Guangyuan into Sichuan to seriously exceed the standard, which became a major environmental emergency notified by the Ministry of environmental protection that year

on March 22, 2016, 20 tons of diesel oil leaked in Ningqiang County, Shaanxi Province, causing water pollution in the Jialing River

on May 5, 2017, the high concentration thallium containing wastewater of Hanzhong zinc copper mine company in Ningqiang County, Shaanxi Province was directly discharged, resulting in the thallium concentration in the drinking water source of Guangyuan Xiwan water plant exceeding the standard by 4.6 times

antimony and thallium are heavy metals, which will seriously affect the safety of drinking water when entering the water body

in 2015, antimony pollution led to the Jialing River Reach of more than 300 kilometers in Gansu, Shaanxi and Sichuan provinces, but the quality was not equal to that the antimony concentration of brand water exceeded the standard for 66 days. Guangyuan took emergency water supply measures throughout the city

in 2017, thallium pollution caused the water supply in Guangyuan urban area to be interrupted for 36 hours. Guangyuan organized fire trucks and sanitation trucks to deliver water to the masses. The township government along the Jialing River issued an emergency notice that "people and animals are not allowed to drink the river and river water, and all water operations are prohibited" before the problem is found out

"the most frightening thing is that upstream input pollution is full of uncertainty, like the 'sword of Damocles' hanging overhead, which falls down at some time." In the interview, some people involved in the disposal of the Jialing River pollution incident said

in view of the high risk of heavy metal pollution in the upstream, Guangyuan has improved its monitoring capacity, increased the monitoring frequency, and achieved 109 full index monitoring on the main stream of the Jialing River every month, striving to detect pollution as soon as possible and avoid delaying the opportunity

learn from the bitter experience. In order to prevent the embarrassment of suffering every year, Guangyuan has chosen the Jialing River branch with fewer upstream towns and industrial and mining enterprises, which may be used as a grade 1 product standard flow Bailong River as a new urban drinking water source, and the main stream of Jialing River as a standby water source. The phase I project of Bailong River No. 2 water plant will be completed in 2018

"we can't always rely on luck for matters involving the safety of drinking water for millions of people in the basin. We are scared, can't afford to be provoked, and can hide. Although the investment in changing water sources and building water plants and pipes is large, we must also build them for the sake of drinking water safety. We are really forced to do nothing." Some cadres and masses interviewed said

[more than 200 tailings ponds in the upper reaches become ecological hidden dangers]

the West Qinling Mountains region across Shaanxi and Gansu in the upper reaches of the Jialing River is one of the major lead-zinc mineral areas in China, and a large number of tailings ponds have been developed and formed in more than 30 years

Xiang Chun, director of Liangjiang volunteer service development center, a Chongqing public welfare and environmental protection organization that has long paid attention to the water environment problems in the upper reaches of the Jialing River, said that according to their field investigations in Gansu and Shaanxi for many times, the tailings pond is the biggest ecological risk in the Jialing River Basin at present, and most of them are built according to the tributaries of the Jialing River. Once it leaks, it will soon cause water pollution. Especially in recent years, due to the weak market, many mining enterprises have stopped or semi stopped production, and many tailings ponds have become "ownerless reservoirs", which is very difficult to supervise and control, and the risk is high

according to the statistics of Liangjiang volunteer service development center, there are more than 200 tailings ponds in Shaanxi and Gansu in the upper reaches of Jialing River, mainly distributed in Longnan City, Gansu Province and Hanzhong City, Shaanxi Province. Taking Longnan as an example, there are currently more than 140 tailings ponds, storing nearly 60million cubic meters of tailings sand

the feedback from the seventh environmental protection supervision group of the central government to Gansu Province in April 2017 also clearly pointed out that "the environmental risk of tailings ponds in Longnan City is relatively high. There are 140 tailings ponds involving heavy metals in Longnan City, 110 of which have safety and environmental risks, of which 10 are located in drinking water source protection areas or conservation areas, and 8 are located in river beaches, with prominent potential environmental risks"

most of these tailings ponds were built around the 1980s. Most of them are "trilateral reservoirs" by the "river, river and roadside", or built in the upstream of the village as "overhead reservoirs". The design and site selection are unscientific. Most tailings ponds lack basic data, and the construction and current situation of concealed works are unknown. After years of operation, there are many hidden dangers. For example, the Jialing River antimony pollution incident in 2015 was caused by the damage of the bulkhead of the overflow well of the tailings pond

after the antimony pollution incident in 2015, Shaanxi, Gansu and other places have vigorously rectified the tailings pond, but there are still some hidden dangers. In October 2016, volunteers from Chongqing Liangjiang volunteer service development center found that the wastewater from an enterprise tailings pond was directly discharged into Anhe River, a tributary of Jialing River without treatment in Hekou Town, Fengxian County, Shaanxi Province. They sampled and tested the wastewater and found that the total lead concentration was as high as 8.33mg/l, which exceeded the standard by about 16 times. Environmental protection volunteers immediately reported to the local environmental protection department, which investigated and dealt with the enterprise

although several major pollution incidents in recent years have finally been dealt with in a timely manner, the "sequelae" of cross-border pollution should not be underestimated. According to the analysis of the environmental protection circles, "the continuous occurrence of transboundary import pollution events has formed some long-term impacts on the surface water and sediments, the aquatic environment and aquatic organisms in the Guangyuan section of the Jialing River, which are difficult to evaluate."

cross border pollution not only hurts Guangyuan and cities along the river, but also worries Chongqing, the most downstream of the Jialing River. Once a pollution event occurs in the upstream, the water quality of the Jialing River section at the junction of Sichuan and Chongqing will be closely monitored. A person from Chongqing Environmental Protection Department said, "Jialing River is the main drinking water source in the main urban area of Chongqing. As a mega city, the drinking water source should not be a problem."

[increase the "illegal cost" and break the division of river basin divisions]

"from the cases in recent years, we should further increase the 'cost' of enterprises breaking the law and cadres neglecting environmental protection, and seriously investigate the law of environmental polluters according to law." Some of the cadres and experts interviewed said to that they should also break the barriers of administrative divisions, promote the joint prevention and treatment of water pollution in the whole basin, and improve the compensation mechanism of water environment in the basin, so as to avoid the recurrence of pollution

the economy in the upper reaches of the Jialing River is relatively backward and rich in minerals. Some places rely on the development of mineral resources, and the lower reaches belong to different administrative regions, which objectively makes some enterprises less conscious of pollution prevention and control. For example, Hanzhong zinc copper mine company, the enterprise responsible for thallium pollution in 2017, is a major local taxpayer, but it discharges thallium containing wastewater directly into the Jialing River

it was learned that after thallium pollution occurred, Guangyuan police wanted to establish and improve the comprehensive evaluation criteria and industry standards for plastic granulator equipment, and quickly filed a "case of environmental pollution", and many people, such as the legal representative of the company suspected of illegal sewage discharge, were detained. The procuratorial organ also initiated the public interest litigation procedure and reached a civil settlement agreement with the illegal enterprise. In addition to fulfilling its own obligation to rectify and repair the environment, the other party also compensated 80million yuan for the losses and expenses caused by pollution in Guangyuan section of Jialing River

some people in cities and counties at the border of Sichuan and Shaanxi reported that the effect of "dealing with one case and deterring a group" was remarkable. The illegal sand dredgers on the Jialing River, which had been unable to be banned in the past, fled, and more than 20 were successfully banned in Hanzhong, Shaanxi Province, just upstream. "We should not only manage the enterprise, but also let the cadres who do not pay attention to environmental protection pay the price, so as to 'have a long memory'."

after the antimony pollution incident in 2015, 11 cadres in Longnan City, Gansu Province, were punished by Party and government discipline. Relevant departments in Longnan continued to strengthen the governance of tailings ponds, implemented the comprehensive governance plan of "one pond and one policy" for the safety production of tailings ponds, and publicized 142 tailings pond managers in the media, with significantly strengthened governance and supervision

the interviewees believed that the Jialing River, with a total length of more than 1300 kilometers, flows through four provinces and cities of Shaanxi, Gansu, Sichuan and Chongqing, and has a drainage area of 160000 square kilometers. In addition to strengthening supervision and strict accountability, the prevention and control of water pollution also need to break the administrative division barriers and realize the joint prevention and treatment of water pollution throughout the basin, so as to avoid problems in water safety in the basin

they proposed to strengthen the sharing of monitoring data in the Jialing River cross-border basin, especially the sharing of full analysis data of 109 indicators in the upstream and downstream surface water centralized drinking water source areas, so as to ensure the safety of drinking water in the middle and lower reaches. The setting of water quality monitoring sections in border provinces and cities should be more scientific and reasonable, so as to facilitate the early detection of pollution sources, clarify the pollution of sudden environmental events, and improve the accuracy of water quality monitoring data

secondly, at the provincial level, establish and improve the linkage mechanism of cross-border basin environmental protection with convenient, clear, fast and efficient communication among the four provinces and cities of Jialing River

in addition, the compensation mechanism for water environment in the basin should be further improved. The current river basin compensation mechanism is mostly limited within the administrative divisions of a province, and there is no clear and perfect compensation mechanism between provinces (autonomous regions, municipalities directly under the central government). They suggested that the Jialing River Basin should clarify the subject of ecological compensation, determine the scope of objects of ecological compensation, improve the "two-way" compensation mechanism for transboundary water environment, and promote ecological compensation to the areas with damaged ecological environment

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