空气质量小常识
- 1、口罩小知识
-
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?
-
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 : 2026-04-03 06:39:27 HTTP/2.0 GET : https://m.tianqibao.com/aqi/yuetangqu.html
- 运行时间 : 1.608950s [ 吞吐率:0.62req/s ] 内存消耗:6,500.88kb 文件加载:241
- 查询信息 : 24 queries
- 缓存信息 : 17 reads,5 writes
- 会话信息 : SESSION_ID=c535c92585f3fe0a38a1aaa36e487e98
- CONNECT:[ UseTime:0.001098s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.004661s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.000874s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.001242s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.000562s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'yuetangqu' LIMIT 1 [ RunTime:0.001713s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2354 LIMIT 1 [ RunTime:0.000506s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2353 LIMIT 1 [ RunTime:0.000316s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2354 LIMIT 1 [ RunTime:0.000304s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2355 LIMIT 1 [ RunTime:0.000313s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2356 LIMIT 1 [ RunTime:0.000455s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2357 LIMIT 1 [ RunTime:0.000331s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2358 LIMIT 1 [ RunTime:0.000361s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2359 LIMIT 1 [ RunTime:0.000481s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2360 LIMIT 1 [ RunTime:0.000381s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000781s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 2354 LIMIT 1 [ RunTime:0.017755s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:1.450283s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 12 LIMIT 1 [ RunTime:0.010689s ]
- SELECT * FROM `sa_area` WHERE `id` IN (322,321,324,323,313,408,320,406,319,310) [ RunTime:0.000563s ]
- SELECT * FROM `sa_area` WHERE `id` IN (136,134,122,418,450,98,99,446,449,79) [ RunTime:0.000459s ]
- SELECT * FROM `sa_area` WHERE `id` IN (200,354,410,335,366,171,358,363,336,342) [ RunTime:0.000619s ]
- SELECT * FROM `sa_area` WHERE `id` IN (116,115,94,91,90,456,453,89,121,454) [ RunTime:0.000588s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.001147s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000398s ]

1.615787s