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 : 2026-07-15 12:45:33 HTTP/2.0 GET : https://m.tianqibao.com/aqi/guanglingqu.html
- 运行时间 : 0.104113s [ 吞吐率:9.60req/s ] 内存消耗:6,656.07kb 文件加载:241
- 查询信息 : 20 queries
- 缓存信息 : 18 reads,2 writes
- 会话信息 : SESSION_ID=33376cabaa00dfb2a985516b046d2f05
- CONNECT:[ UseTime:0.005056s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.001388s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001205s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'guanglingqu' LIMIT 1 [ RunTime:0.000771s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1480 LIMIT 1 [ RunTime:0.000668s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1480 LIMIT 1 [ RunTime:0.000667s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1481 LIMIT 1 [ RunTime:0.000677s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1482 LIMIT 1 [ RunTime:0.000653s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1483 LIMIT 1 [ RunTime:0.000527s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1484 LIMIT 1 [ RunTime:0.000534s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1485 LIMIT 1 [ RunTime:0.000641s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1486 LIMIT 1 [ RunTime:0.000758s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001014s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1480 LIMIT 1 [ RunTime:0.000860s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 62 LIMIT 1 [ RunTime:0.002980s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,428,356,336,361,343,458,375,471,462) [ RunTime:0.000990s ]
- SELECT * FROM `sa_area` WHERE `id` IN (419,136,418,446,443,450,95,130,414,449) [ RunTime:0.000918s ]
- SELECT * FROM `sa_area` WHERE `id` IN (450,396,95,468,407,123,366,410,412,342) [ RunTime:0.002491s ]
- SELECT * FROM `sa_area` WHERE `id` IN (241,476,463,251,371,232,189,84,465,466) [ RunTime:0.001315s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.004470s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001337s ]

0.113699s