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 : 2026-04-14 23:12:52 HTTP/2.0 GET : https://m.tianqibao.com/aqi/qitaixian.html
- 运行时间 : 0.171041s [ 吞吐率:5.85req/s ] 内存消耗:6,518.28kb 文件加载:241
- 查询信息 : 22 queries
- 缓存信息 : 18 reads,4 writes
- 会话信息 : SESSION_ID=5a796f687e3d8bcb262116f4028e8a45
- CONNECT:[ UseTime:0.002039s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.006862s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.002229s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.001217s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'qitaixian' LIMIT 1 [ RunTime:0.001922s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3474 LIMIT 1 [ RunTime:0.000786s ]
- SELECT * FROM `sa_area` WHERE `pid` = 461 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.005143s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3470 LIMIT 1 [ RunTime:0.003282s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3471 LIMIT 1 [ RunTime:0.000660s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3472 LIMIT 1 [ RunTime:0.000850s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3473 LIMIT 1 [ RunTime:0.000442s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3474 LIMIT 1 [ RunTime:0.000587s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3475 LIMIT 1 [ RunTime:0.000701s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3476 LIMIT 1 [ RunTime:0.001224s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001266s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 3474 LIMIT 1 [ RunTime:0.005953s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 8 LIMIT 1 [ RunTime:0.007464s ]
- SELECT * FROM `sa_area` WHERE `id` IN (321,324,323,320,313,325,322,310,319,305) [ RunTime:0.001645s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,419,450,127,130,134,136,446,131,132) [ RunTime:0.012512s ]
- SELECT * FROM `sa_area` WHERE `id` IN (314,317,323,325,326,327,328,414,445,449) [ RunTime:0.003730s ]
- SELECT * FROM `sa_area` WHERE `id` IN (467,103,305,105,459,309,110,476,463,108) [ RunTime:0.004410s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.007527s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.002509s ]

0.179874s