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 : 2026-05-18 16:03:03 HTTP/2.0 GET : https://m.tianqibao.com/aqi/xinshaoxian.html
- 运行时间 : 0.285120s [ 吞吐率:3.51req/s ] 内存消耗:6,661.63kb 文件加载:241
- 查询信息 : 27 queries
- 缓存信息 : 17 reads,4 writes
- 会话信息 : SESSION_ID=e0b7c0a8cc81d355d92746d4cb556631
- CONNECT:[ UseTime:0.013382s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.007531s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001059s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.000671s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'xinshaoxian' LIMIT 1 [ RunTime:0.000670s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2378 LIMIT 1 [ RunTime:0.000300s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2375 LIMIT 1 [ RunTime:0.002488s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2376 LIMIT 1 [ RunTime:0.000968s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2377 LIMIT 1 [ RunTime:0.000667s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2378 LIMIT 1 [ RunTime:0.000674s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2379 LIMIT 1 [ RunTime:0.000985s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2380 LIMIT 1 [ RunTime:0.001184s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2381 LIMIT 1 [ RunTime:0.010655s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2382 LIMIT 1 [ RunTime:0.000593s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2383 LIMIT 1 [ RunTime:0.000420s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2384 LIMIT 1 [ RunTime:0.000595s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2385 LIMIT 1 [ RunTime:0.006535s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2386 LIMIT 1 [ RunTime:0.001277s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001136s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 2378 LIMIT 1 [ RunTime:0.000758s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.006641s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 25 LIMIT 1 [ RunTime:0.025721s ]
- SELECT * FROM `sa_area` WHERE `id` IN (479,408,467,465,369,324,322,321,320,318) [ RunTime:0.001291s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,446,450,419,136,385,443,449,414,417) [ RunTime:0.011444s ]
- SELECT * FROM `sa_area` WHERE `id` IN (95,358,359,363,366,350,342,343,356,330) [ RunTime:0.014864s ]
- SELECT * FROM `sa_area` WHERE `id` IN (467,464,466,465,430,444,432,188,180,463) [ RunTime:0.010667s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.007122s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.011372s ]

0.294156s