Rayong, The Energy Regulatory Commission reveals the results of the inspection of chemical vapors at the Winprocess factory. It was found that the types and quantities examined continued to decrease. But some areas were still at an irritating level. In Building 3, ammonia levels were found to be at dangerous levels. The OBEC police had to wait another two weeks before they could collect evidence. Ready to adjust the plan to reduce the eruption of aluminum waste. The Pollution Control Department inspected and assessed the safety of air quality in the fire area of ??the industrial waste and hazardous chemical warehouse of Winprocess Co., Ltd., Rayong Province, to Rayong Province police forensics before working in the area. From the measurement of air quality, it was found that Ammonia levels are at 1 - 7 ppm, which is a safe level for operations, except Building 3 is still at a dangerous level. Rayong Provincial Forensic Police plans to inspect Building 3 in the next 2 weeks. At this time, officials have all the fire under control. But chemical vapors were still detected in the waste pile where the original fire burned, so plans to control the situation were adjusted. The Department of Industrial Works together with the Rayong Provincial Administrative Organization brought sodium bicarbonate to cover the waste pile to absorb moisture from the aluminum waste pile and reduce chemical reactions and prevent the eruption of the aluminum waste pile. As for the air quality measurement results Around the factory in 13 community areas, covering the areas of Bang But Subdistrict, Nong Bua Subdistrict, downwind areas, 3 times, namely from 6:30 a.m. to 9:00 a.m., from 1:39 p.m. to 4:25 p.m., and from 6:40 p.m. to 8:15 p.m., it was found that some points contained vapors of the substance. Some chemicals are at levels that cause irritation to the respiratory system, eyes, and skin. Testing is divided according to distance from the incident location as follows: Distance of 2 kilometers, inspected during the afternoon to eveni ng of 27 April 2024 at Bang But Subdistrict. Found small amounts of chemical vapors in Groups 4 and 8, totaling 6 types, including ammonia, hydrogen chloride, benzene, hydrogen cyanide, nitrous oxide, and methane. Methane) and substances were found at levels that would affect the respiratory system. Irritating to the eyes and skin, there are 3 types in Group 4, including acrylonitrile. (Acrylonitrile), phosgene (Phosgene) and phosphine (Phosphine). And in the area of ??Village No. 8, phosgene (Phosgene) was found in the evening. Only a small amount of chemical vapor was detected, the same as what was detected. In the afternoon, the exception was methane and no substances at levels that would affect the respiratory system were detected. Irritating to eyes and skin. Range of 2 - 5 kilometers, inspected in the afternoon of April 27, 2024, in the area of ??Bang But Subdistrict, Village No. 4 and Nong Bua Subdistrict, Villages 2 and 11, a small amount of chemical vapors was detected within a distance of 2 kilomet ers, with benzene detected. (Benzene) only in the area of ??Nong Bua Subdistrict, Village No. 11, and substances were found at levels that would affect the respiratory system. Irritating to eyes and skin. In the area of ??Bang But Subdistrict, Village No. 4, is Phosgene. In the area of ??Nong Bua Subdistrict, Village No. 2, is acrylonitrile. (Acrylonitrile) and group 11 found 3 types: acrylonitrile (Acrylonitrile), Phosgene (Phosgene) and Phosphine. In the evening, small amounts of chemical vapors were detected, which were the same as those found in the afternoon. and found substances at levels that would affect the respiratory system and irritate the eyes and skin. In the area of ??Nong Bua Subdistrict, Village No. 11, 2 types are Methyl Mercaptan and Nitrogen Dioxide. - Within a distance of 5 - 7 km, 1 point in the area of ??Nong Bua Subdistrict, Village No. 3. A small amount of chemical vapors was detected within a distance of 2 kilometers and substances were found at levels that would affect the respirat ory system. Two types of eye and skin irritants include acrylonitrile. (Acrylonitrile) and Phosgene (Phosgene) in the evening, in the area of ??Nong Bua Subdistrict, Village No. 3, small amounts of chemical vapors were detected within a distance of 2 kilometers, and nitrogen dioxide (Nirogen Dioxide) was found at levels that would Affects the respiratory system Irritating to eyes and skin. The results of the inspection on April 28, 2024 in the morning are as follows: A distance of 2 - 5 kilometers in the area of ??Nong Bua Subdistrict, Villages 2 and 11, found a small amount of chemical vapors of the same type as those detected the previous day. The substances were found at levels that affected the respiratory system. Irritating to eyes and skin. In the area of ??Nong Bua Subdistrict, Village No. 2, 2 types, including Methyl Mercaptan (Methyl Mercaptan), Phosphine, and Village No. 11, 3 types, including Methyl Mercaptan (Methyl Mercaptan), Phosphine. Phosphine and Nitrogen Dioxide A distance of 5 - 10 kilo meters, 1 point in the area of ??Nong Bua Subdistrict, Village No. 3, found small amounts of 5 types of chemical vapors: ammonia, hydrogen cyanide, nitrous oxide, methane, and phosphide. Phosphine The Pollution Control Department evaluated air quality measurement results from 22 April - 28 April 2024 and found that the type and concentration of chemical vapors detected tended to continuously decrease. According to the situation, the fire can be controlled. But some chemical vapors are still found that affect the respiratory system. Irritating to eyes and skin. If abnormal symptoms occur, you should immediately see a doctor. The Pollution Control Department and the Department of Industrial Works will continue to monitor the situation. Source: Thai News Agency
