空气质量小常识
- 1、口罩小知识
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常见的PM2.5口罩有N90,N95,N99等类型,其中数字90代表过滤效果在90%以上,95代表过滤效果在95%以上。过渡效果越好,相对呼吸也越困难,一般选择N90系列的口罩就足够了。
- 2、PM2.5和PM10的区别
- PM2.5指空气中直径≤2.5微米的颗粒物,可入肺。吸入过多易引发哮喘、支气管炎和心血管病等疾病。
PM10指空气中直径≤10微米的颗粒物,可入上呼吸道,但可排出体外,对人体危害相对较小。
- 3、雾霾是什么?
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雾霾天气是一种大气污染状态,包含各种含量超标的悬浮颗粒物。雾是液态水珠,霾是固体,包括空气中的灰尘、硫酸、硝酸、可吸入颗粒物等粒子,会使能见度降低。两者结合在一起就是雾霾。
基本
文件
流程
错误
SQL
调试
- 请求信息 : 2025-06-12 07:17:49 HTTP/2.0 GET : https://m.tianqibao.com/aqi/lingbao.html
- 运行时间 : 0.374391s [ 吞吐率:2.67req/s ] 内存消耗:6,641.84kb 文件加载:238
- 查询信息 : 22 queries
- 缓存信息 : 21 reads,8 writes
- 会话信息 : SESSION_ID=f1506d89aafe9974640d965c12a4f6a3
- CONNECT:[ UseTime:0.000527s ] mysql:host=localhost;port=3306;dbname=www2_tianqibao_c;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.002544s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.003444s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.004003s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'lingbao' LIMIT 1 [ RunTime:0.005613s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2169 LIMIT 1 [ RunTime:0.001768s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2163 LIMIT 1 [ RunTime:0.001482s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2164 LIMIT 1 [ RunTime:0.001263s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2165 LIMIT 1 [ RunTime:0.002453s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2166 LIMIT 1 [ RunTime:0.001394s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2167 LIMIT 1 [ RunTime:0.001275s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2168 LIMIT 1 [ RunTime:0.001136s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2169 LIMIT 1 [ RunTime:0.001259s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.004598s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 2169 LIMIT 1 [ RunTime:0.003834s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.009979s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 71 LIMIT 1 [ RunTime:0.008036s ]
- SELECT * FROM `sa_area` WHERE `id` IN (324,408,320,328,325,323,321,319,478,468) [ RunTime:0.000975s ]
- SELECT * FROM `sa_area` WHERE `id` IN (446,443,449,418,450,79,83,385,442,444) [ RunTime:0.000938s ]
- SELECT * FROM `sa_area` WHERE `id` IN (447,166,304,365,289,366,318,441,465,184) [ RunTime:0.000862s ]
- SELECT * FROM `sa_area` WHERE `id` IN (467,373,424,367,464,236,423,372,420,422) [ RunTime:0.001091s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.002204s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001005s ]

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