| | 1 | | | | | | | | | | | 2024 | | | | | | | | | | PM2.5 | | | | | | | | | | | | | | 2023 | 89.4% 1.5 | 4 | | | 2024 | | | | | ᠦᠢᠯᠡᠳᠪᠦᠷᠢ | | | | | | | | | | | | | | | | | |