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 : 2026-06-20 16:55:13 HTTP/2.0 GET : https://m.tianqibao.com/aqi/huangzesi.html
- 运行时间 : 0.121221s [ 吞吐率:8.25req/s ] 内存消耗:6,644.97kb 文件加载:241
- 查询信息 : 23 queries
- 缓存信息 : 17 reads,5 writes
- 会话信息 : SESSION_ID=ad4bf9840428cd9b74b0d8e11bb40586
- CONNECT:[ UseTime:0.000662s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.001034s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.002123s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.003854s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.001618s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'huangzesi' LIMIT 1 [ RunTime:0.001067s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 5053 LIMIT 1 [ RunTime:0.000727s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2766 LIMIT 1 [ RunTime:0.000834s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2767 LIMIT 1 [ RunTime:0.000737s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2768 LIMIT 1 [ RunTime:0.000933s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2769 LIMIT 1 [ RunTime:0.002161s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2770 LIMIT 1 [ RunTime:0.000955s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2771 LIMIT 1 [ RunTime:0.000869s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2772 LIMIT 1 [ RunTime:0.001375s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001613s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 5053 LIMIT 1 [ RunTime:0.001663s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.005258s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 48 LIMIT 1 [ RunTime:0.005369s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,458,471,462,67,473,461,324,320,319) [ RunTime:0.000939s ]
- SELECT * FROM `sa_area` WHERE `id` IN (419,136,418,446,443,450,95,130,414,449) [ RunTime:0.000874s ]
- SELECT * FROM `sa_area` WHERE `id` IN (450,396,95,468,407,123,366,410,412,342) [ RunTime:0.001174s ]
- SELECT * FROM `sa_area` WHERE `id` IN (241,476,463,251,371,232,189,84,465,466) [ RunTime:0.001101s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.003227s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.002214s ]

0.128264s