KẾT QUẢ ĐIỀU TRA DỊCH TỄ HỌC DÂN CƯ SỐNG TRONG KHU VỰC MỎ ĐẤT HIẾM MƯỜNG HUM, HUYỆN BÁT XÁT, TỈNH LÀO CAI

Abstract

 Background: Vietnam is the country with the world's third-largest rare earth reserves of about 20 million tons, concentrated in Dong Pao, Nam Xe, Muong Hum mines... according to the results of component analysis. Rare earth minerals contain high levels of radioactive elements of uranium and thorium. At Muong Hum rare earth mines, it caused radioactive anomalies with an equivalent radiation dose up to 14.5 mSv.year^-1, the radon concentration in the air was up to 1.000 Bq.m^-3, greatly affect the environment and healthy people living in the mines. Objectives: assess the impact of radiation on the health of people living inside and outside the mine. Subjects and methods: The paper presents the contents of research and investigation and epidemiological surveys of people living in rare earth mines Muong Hum, Bat Xat district, Lao Cai province. Results: The results of a survey of the health status of people living in rare earth mines Muong Hum and people living outside the mine show: unusual rates of red blood cells of people living outside the mine (outside the heterosexual area of radioactive) are lower than people living in and adjacent to mines (in the area of radioactive anomalies): the rate of 8% is lower than the rate of 3235%; MCH: 65% rate is 18% lower than 8891%; MCHC: the rate of 7% is nearly 85% lower than 8791%, RED rate is 7% lower than 55% compared to 6770%. Conslustion: Genetic blood disease from the previous generation is one of the evidences on the impact of radioactive radiation on the health of people living in mines containing radioactive substances.