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 18:21:40 HTTP/2.0 GET : https://m.tianqibao.com/aqi/duchangxian.html
- 运行时间 : 0.374110s [ 吞吐率:2.67req/s ] 内存消耗:6,692.67kb 文件加载:241
- 查询信息 : 26 queries
- 缓存信息 : 18 reads,2 writes
- 会话信息 : SESSION_ID=01d62735794bd436de281af129309faf
- CONNECT:[ UseTime:0.001414s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.053476s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.003942s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'duchangxian' LIMIT 1 [ RunTime:0.012131s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1823 LIMIT 1 [ RunTime:0.014168s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1816 LIMIT 1 [ RunTime:0.001828s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1817 LIMIT 1 [ RunTime:0.001233s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1818 LIMIT 1 [ RunTime:0.001603s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1819 LIMIT 1 [ RunTime:0.001435s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1820 LIMIT 1 [ RunTime:0.001221s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1821 LIMIT 1 [ RunTime:0.001636s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1822 LIMIT 1 [ RunTime:0.001945s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1823 LIMIT 1 [ RunTime:0.002057s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1824 LIMIT 1 [ RunTime:0.001298s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1825 LIMIT 1 [ RunTime:0.000962s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1826 LIMIT 1 [ RunTime:0.001144s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1827 LIMIT 1 [ RunTime:0.001289s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1828 LIMIT 1 [ RunTime:0.001483s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.002593s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1823 LIMIT 1 [ RunTime:0.026244s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 8 LIMIT 1 [ RunTime:0.014010s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,366,362,360,337,428,381,380,377,374) [ RunTime:0.007264s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,446,419,449,448,450,95,412,385,414) [ RunTime:0.002789s ]
- SELECT * FROM `sa_area` WHERE `id` IN (97,414,449,450,303,396,468,95,345,417) [ RunTime:0.002130s ]
- SELECT * FROM `sa_area` WHERE `id` IN (460,452,463,68,64,60,56,54,58,36) [ RunTime:0.012912s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.004408s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001430s ]

0.383735s