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 : 2026-06-13 01:42:32 HTTP/2.0 GET : https://m.tianqibao.com/aqi/tiedongqu1.html
- 运行时间 : 0.073117s [ 吞吐率:13.68req/s ] 内存消耗:6,646.95kb 文件加载:241
- 查询信息 : 21 queries
- 缓存信息 : 17 reads,5 writes
- 会话信息 : SESSION_ID=82e17290993f5354a101e3b4a830f9b7
- CONNECT:[ UseTime:0.000664s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.001083s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001104s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.001157s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.000712s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'tiedongqu1' LIMIT 1 [ RunTime:0.000879s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1235 LIMIT 1 [ RunTime:0.000672s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1234 LIMIT 1 [ RunTime:0.000592s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1235 LIMIT 1 [ RunTime:0.000532s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1236 LIMIT 1 [ RunTime:0.001613s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1237 LIMIT 1 [ RunTime:0.000619s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1238 LIMIT 1 [ RunTime:0.000545s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001041s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1235 LIMIT 1 [ RunTime:0.000866s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.003597s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 0 LIMIT 1 [ RunTime:0.003764s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,458,471,462,67,473,461,324,320,319) [ RunTime:0.000981s ]
- SELECT * FROM `sa_area` WHERE `id` IN (419,136,418,446,443,450,95,130,414,449) [ RunTime:0.000830s ]
- SELECT * FROM `sa_area` WHERE `id` IN (450,396,95,468,407,123,366,410,412,342) [ RunTime:0.000778s ]
- SELECT * FROM `sa_area` WHERE `id` IN (241,476,463,251,371,232,189,84,465,466) [ RunTime:0.000843s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.001379s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000687s ]

0.078884s