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 : 2026-05-16 17:51:06 HTTP/2.0 GET : https://m.tianqibao.com/aqi/xianyouxian.html
- 运行时间 : 0.080779s [ 吞吐率:12.38req/s ] 内存消耗:6,650.42kb 文件加载:241
- 查询信息 : 19 queries
- 缓存信息 : 17 reads,3 writes
- 会话信息 : SESSION_ID=c70f4377f18f71e7c2d5957051b79a93
- CONNECT:[ UseTime:0.000480s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.000780s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.000853s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'xianyouxian' LIMIT 1 [ RunTime:0.000521s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1738 LIMIT 1 [ RunTime:0.000291s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1734 LIMIT 1 [ RunTime:0.000345s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1735 LIMIT 1 [ RunTime:0.000249s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1736 LIMIT 1 [ RunTime:0.000306s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1737 LIMIT 1 [ RunTime:0.000242s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1738 LIMIT 1 [ RunTime:0.000278s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000646s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1738 LIMIT 1 [ RunTime:0.000454s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.005138s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 32 LIMIT 1 [ RunTime:0.007927s ]
- SELECT * FROM `sa_area` WHERE `id` IN (408,406,369,325,324,318,312,311,305,328) [ RunTime:0.000435s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,419,450,446,449,443,444,451,95,136) [ RunTime:0.000402s ]
- SELECT * FROM `sa_area` WHERE `id` IN (364,412,359,366,95,358,363,342,408,312) [ RunTime:0.000451s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,466,464,467,465,424,463,376,451,476) [ RunTime:0.001622s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.000954s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000389s ]

0.089903s