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?????????????????????,11???????5.1?,????????????????????1.9?,?????1961????????????????????????????????

?????,?1~2???,?????????????????????????????10~30????????;?????????3~6???????????8~15??????????????????

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????,?,?????12???????????6??7?????????,???,??2~4?,?6???????????????,?????????????????????????4~5?;12??????9?????,?????????????????????,?;12???????10?????12???????,??,????????????????????

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?????????????????,?«????????????????»????????????,????13???????????,?????????«WMO?????????????»??????

????20??????????,2023????,????,??????????????????????(1750?)????????????51%?

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

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