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 : 2026-05-20 10:30:18 HTTP/2.0 GET : https://m.tianqibao.com/aqi/yushanqu.html
- 运行时间 : 0.151737s [ 吞吐率:6.59req/s ] 内存消耗:6,679.76kb 文件加载:241
- 查询信息 : 19 queries
- 缓存信息 : 18 reads,2 writes
- 会话信息 : SESSION_ID=eb0b66ffb32b85808c45ced536d74c05
- CONNECT:[ UseTime:0.000732s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.000992s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001732s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'yushanqu' LIMIT 1 [ RunTime:0.001022s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1634 LIMIT 1 [ RunTime:0.000740s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1633 LIMIT 1 [ RunTime:0.000742s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1634 LIMIT 1 [ RunTime:0.000663s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1635 LIMIT 1 [ RunTime:0.000766s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1636 LIMIT 1 [ RunTime:0.000491s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1637 LIMIT 1 [ RunTime:0.000936s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1638 LIMIT 1 [ RunTime:0.000517s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000851s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1634 LIMIT 1 [ RunTime:0.001451s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 41 LIMIT 1 [ RunTime:0.026094s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,465,408,369,467,466,411,324,323,321) [ RunTime:0.015120s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,419,450,446,449,130,412,470,475,477) [ RunTime:0.001018s ]
- SELECT * FROM `sa_area` WHERE `id` IN (450,396,342,363,366,358,359,95,365,362) [ RunTime:0.000891s ]
- SELECT * FROM `sa_area` WHERE `id` IN (467,471,474,457,461,517,464,515,510,418) [ RunTime:0.011018s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.003791s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001365s ]

0.160394s