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 : 2025-11-29 18:54:28 HTTP/2.0 GET : https://m.tianqibao.com/aqi/zhongxian8.html
- 运行时间 : 1.323051s [ 吞吐率:0.76req/s ] 内存消耗:6,629.64kb 文件加载:241
- 查询信息 : 29 queries
- 缓存信息 : 17 reads,3 writes
- 会话信息 : SESSION_ID=7bd07c7cb758ca5776dd5da110f6a6d9
- CONNECT:[ UseTime:0.002196s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.006504s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.002493s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'zhongxian8' LIMIT 1 [ RunTime:0.006263s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 358 LIMIT 1 [ RunTime:0.002040s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 329 LIMIT 1 [ RunTime:0.002860s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 330 LIMIT 1 [ RunTime:0.002137s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 331 LIMIT 1 [ RunTime:0.002190s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 332 LIMIT 1 [ RunTime:0.001475s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 333 LIMIT 1 [ RunTime:0.015619s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 334 LIMIT 1 [ RunTime:0.004605s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 335 LIMIT 1 [ RunTime:0.000658s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 336 LIMIT 1 [ RunTime:0.000823s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 337 LIMIT 1 [ RunTime:0.001537s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 338 LIMIT 1 [ RunTime:0.000913s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 339 LIMIT 1 [ RunTime:0.000997s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 340 LIMIT 1 [ RunTime:0.000725s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 341 LIMIT 1 [ RunTime:0.001059s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 342 LIMIT 1 [ RunTime:0.000859s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 343 LIMIT 1 [ RunTime:0.000586s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.004122s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 358 LIMIT 1 [ RunTime:0.008572s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:1.102694s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 8 LIMIT 1 [ RunTime:0.005495s ]
- SELECT * FROM `sa_area` WHERE `id` IN (312,311,528,524,523,522,521,513,324,303) [ RunTime:0.001155s ]
- SELECT * FROM `sa_area` WHERE `id` IN (95,446,449,450,134,136,418,419,443,470) [ RunTime:0.012650s ]
- SELECT * FROM `sa_area` WHERE `id` IN (123,95,99,330,340,347,354,356,358,365) [ RunTime:0.001073s ]
- SELECT * FROM `sa_area` WHERE `id` IN (514,225,518,233,77,70,71,371,87,57) [ RunTime:0.001442s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.003564s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.002087s ]

1.330417s