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ȯ濬 3~10 溸 ߿Ⱓ Ǻ 37 ߷ɵƴٰ 16 .
߷ ֱ 5Ⱓ ߷ Ҵ 2019 , 2019~2023 5 31 ߷ߴ.
Ǻ ߷ɵ 3 22 1997 溸 ̷ ̸ ¥ ߷Ϸ, 2018 4 19 ߷ߴ.
¿ 谡 ־ ϻ緮 dz ǿ Ѵ. 3 ̷ ȯ濡 ް ⺸ Ǻ ߷ɵƴٰ ߴ.
ȭ ôƮ һȭ źȭҰ ڿܼ ȭй Ǵ 2 ̴. ڱؼ ־ Ǹ , ħ, , ȭҷ Ÿ. , ȯ, õ ȯ ȭ ־ ؾ Ѵ.
ϰ , ϴ 4 10 Ǻ ߰ Ⱓ ϰ α, α, Ϻα, ߺα 4 ǿ 溸 ϰ ִ.
溸 ð 0.12ppm ̻ Ǻ, 0.3ppm ̻ 溸, 0.5ppm ̻ ߴ溸 ߷Ѵ. ݱ 츮 溸 ߴ溸 ߷ .
ȯ濬 ǰȣ ̼ 溸 ˸ ڼ ϰ ȯ ûϸ ھ˸ ִ.
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