一是空气质量持续恶化。
二是瓦斯治理措施不落实。[{'character': '二', 'pinyin': 'er4', 'highest pitch': 10.41, 'lowest pitch': 9.34, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.34, 'lowest pitch': 7.66, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.05}, {'character': '瓦', 'pinyin': 'ua3', 'highest pitch': 7.39, 'lowest pitch': 4.86, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '斯', 'pinyin': 'sii1', 'highest pitch': 10.48, 'lowest pitch': 9.72, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '治', 'pinyin': 'zhiii4', 'highest pitch': 11.01, 'lowest pitch': 10.44, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '理', 'pinyin': 'li3', 'highest pitch': 10.44, 'lowest pitch': 5.06, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '措', 'pinyin': 'cuo4', 'highest pitch': 8.49, 'lowest pitch': 5.06, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '施', 'pinyin': 'shiii1', 'highest pitch': 9.04, 'lowest pitch': 6.79, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '不', 'pinyin': 'bu2', 'highest pitch': 8.13, 'lowest pitch': 6.45, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '落', 'pinyin': 'luo4', 'highest pitch': 10.46, 'lowest pitch': 7.1, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '实', 'pinyin': 'shiii2', 'highest pitch': 7.85, 'lowest pitch': 4.93, 'duration': 0.31, 'prosody hierarchy': '#4'}]