12??5???,??????????12?????????????«????»?????????,?????????,2023????????????????????????421.4±0.1ppm,????????????????????????,???????????????2022?????????????????????????2.3ppm,?,????????????????????(2.4ppm),????????,??????10??????(2014-2023?????????)?????????????????(2.4ppm)??1986±0.6ppb?337.3±0.1ppb,????2022???????????8ppb?0.8ppb,?????2023?2022??(????????)

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?? ????????????????:2023????????

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2????????

3?????

4???100??????

5????????

12??5???,??????????12?????????????«????»?????????,?????????,2023????????????????????????421.4±0.1ppm,????????????????????????,???????????????2022?????????????????????????2.3ppm,?,????????????????????(2.4ppm),????????,??????10??????(2014-2023?????????)?????????????????(2.4ppm)??1986±0.6ppb?337.3±0.1ppb,????2022???????????8ppb?0.8ppb,?????2023?2022??(????????)

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