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 : 2026-06-10 07:53:45 HTTP/2.0 GET : https://m.tianqibao.com/aqi/tianjiaanqu.html
- 运行时间 : 0.119947s [ 吞吐率:8.34req/s ] 内存消耗:6,652.59kb 文件加载:241
- 查询信息 : 22 queries
- 缓存信息 : 17 reads,4 writes
- 会话信息 : SESSION_ID=2c1b708b896292717ce03e3f2518b504
- CONNECT:[ UseTime:0.000812s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.001813s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001862s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'tianjiaanqu' LIMIT 1 [ RunTime:0.000977s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1627 LIMIT 1 [ RunTime:0.000826s ]
- SELECT * FROM `sa_area` WHERE `pid` = 180 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.001114s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1626 LIMIT 1 [ RunTime:0.000889s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1627 LIMIT 1 [ RunTime:0.000940s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1628 LIMIT 1 [ RunTime:0.000918s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1629 LIMIT 1 [ RunTime:0.000789s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1630 LIMIT 1 [ RunTime:0.000744s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1631 LIMIT 1 [ RunTime:0.000760s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1632 LIMIT 1 [ RunTime:0.000760s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.002139s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1627 LIMIT 1 [ RunTime:0.003936s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.004920s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 87 LIMIT 1 [ RunTime:0.003509s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,458,471,462,67,473,461,324,320,319) [ RunTime:0.001133s ]
- SELECT * FROM `sa_area` WHERE `id` IN (419,136,418,446,443,450,95,130,414,449) [ RunTime:0.001496s ]
- SELECT * FROM `sa_area` WHERE `id` IN (450,396,95,468,407,123,366,410,412,342) [ RunTime:0.001681s ]
- SELECT * FROM `sa_area` WHERE `id` IN (241,476,463,251,371,232,189,84,465,466) [ RunTime:0.001923s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.001958s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.002094s ]

0.129870s