[단독]Calcium chloride attack? All the fish in the Han River estuary disappeared.

On the afternoon of the 26th, the Han River estuary in Goyang-si, Gyeonggi-do. When fisherman Kim Hong-seok rolled up the net, four fish the size of an adult’s forearm were hung. Mullet, Kang Junchi, crucian carp, and labia. However, all of the fish were dead. Mr. Kim said, “Mullet in winter has disappeared on the 9th day in the end of this month. This is the first time in this case.” He said, “Even if a few fish are caught, most of them come out dead.”

Former Haengju fishing village chief Park Chan-soo, a fisherman on the Han River in Goyang City, said, “33 fishermen in the Han River estuary in Goyang are trying to lose their hands even though they are in mullet season.” He said, “Even in the average year, after snowing and spraying a lot of calcium chloride on the road, it was raining or when it came to spring, fish could not be caught well for about a week. I am not doing it.”

Mullet, Kang Joonchi, crucian carp, and mackerel that died in the Han River Estuary in Goyang-si, Gyeonggi-do on the afternoon of the 26th. Haengju Fishing Village

Fishermen in the estuary of the Han River in Goyang-si and Gimpo-si, Gyeonggi-do, suspect calcium chloride as the cause of the disappearance of fish from the end of this month. “It is believed that the cause is that a lot of calcium chloride was sprayed on the roads to melt the snow as it recently snowed a lot in Seoul.” On the other hand, the city of Seoul is in a position that it is not true. Fishermen in the Goyang and Gimpo regions argue that “the use of calcium chloride snow removers, which has a fatal adverse effect on the environment, should be drastically reduced and the use of eco-friendly snow removal agents should be increased.”

Shim Hwa-sik, chairman of the’Revival of the Han River, Emergency Response Committee for Fishermen’ It is presumed,” he said. “As the calcium chloride component used as a snow removal agent in the sewage treatment plant was not properly purified and discharged to the Han River, fish suddenly disappeared and some fish appeared to have died.” He pointed out that “the calcium chloride-based deicing agent causes street tree death and vehicle corrosion, and is fatal to companion animals, so it must be used carefully, and it is used excessively in Seoul and contributes to the contamination of the Han River.”

Mullet, Kang Joonchi, crucian carp, and mackerel that died in the Han River Estuary in Goyang-si, Gyeonggi-do on the afternoon of the 26th. Haengju Fishing Village

This phenomenon is also occurring in Gimpo-si, Gyeonggi-do, which is the Han River opposite Goyang-si. Seo Seung-seok, a fisherman from the Han River Fishing Village in Gimpo City, said, “Mullet was in season until the beginning of this month. One state.” He said, “I’ve been fishing for 35 years, but this is the first time this happens in winter, and this is the first time a fish has completely disappeared.” He argued, “It is presumed to be because the large amount of calcium chloride sprayed on the roads in Seoul was washed down by rainwater and flowed into the Han River.”

Regarding this, a Seoul city official said, “It is not a day or two to use calcium chloride snow removal agent. It is not only Korea that uses calcium chloride. Recently, the ratio of eco-friendly snow removal agents is about 20%.” “There seems to be a combination of reasons why the Han River fish disappeared. Fragmentally, it seems difficult to judge that it was due to the snow removal agent. Doesn’t Gyeonggi-do use snow removal?”

An official from the Seoul Water Regeneration Operation Team said, “When the snow sprayed melts, it goes into the sewage treatment plant. At the treatment plant, the sewage mixed with the deicing agent is purified according to legal standards and sent to the Han River. “Even if the deicing agent melts and enters the sewage treatment plant, there will be no problem if it goes through the water treatment process.” He said, “If heavy rain falls right after the snow removal agent is applied, you can flow into the river because of the capacity limit, but this has not happened this winter.” The official said, “There is no facility to purify calcium chloride separately, but it is possible to treat chemical substances such as calcium chloride using microorganisms in a sewage treatment plant, and the microorganisms are working as usual, so I think there was no other effect.”

Reporters Ikjin Jeon and Eunkyung Choi [email protected]