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 17:51:34 HTTP/2.0 GET : https://m.tianqibao.com/aqi/conghuaqu.html
- 运行时间 : 0.054897s [ 吞吐率:18.22req/s ] 内存消耗:6,663.61kb 文件加载:241
- 查询信息 : 24 queries
- 缓存信息 : 18 reads,2 writes
- 会话信息 : SESSION_ID=2d3ec015d7d7481bc95cde07282be346
- CONNECT:[ UseTime:0.000715s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.000518s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.000533s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'conghuaqu' LIMIT 1 [ RunTime:0.000389s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2478 LIMIT 1 [ RunTime:0.000269s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2469 LIMIT 1 [ RunTime:0.000469s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2470 LIMIT 1 [ RunTime:0.000242s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2471 LIMIT 1 [ RunTime:0.000265s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2472 LIMIT 1 [ RunTime:0.000237s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2473 LIMIT 1 [ RunTime:0.000233s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2474 LIMIT 1 [ RunTime:0.000248s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2475 LIMIT 1 [ RunTime:0.000230s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2476 LIMIT 1 [ RunTime:0.000419s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2477 LIMIT 1 [ RunTime:0.000247s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2478 LIMIT 1 [ RunTime:0.000236s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2479 LIMIT 1 [ RunTime:0.000264s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000488s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 2478 LIMIT 1 [ RunTime:0.000367s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 18 LIMIT 1 [ RunTime:0.003776s ]
- SELECT * FROM `sa_area` WHERE `id` IN (408,406,369,325,324,318,312,311,305,328) [ RunTime:0.000347s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,419,450,446,449,443,444,451,95,136) [ RunTime:0.000391s ]
- SELECT * FROM `sa_area` WHERE `id` IN (364,412,359,366,95,358,363,342,408,312) [ RunTime:0.000388s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,466,464,467,465,424,463,376,451,476) [ RunTime:0.000358s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.000585s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000317s ]

0.060700s