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 : 2026-04-01 12:03:44 HTTP/2.0 GET : https://m.tianqibao.com/aqi/feicheng.html
- 运行时间 : 0.128325s [ 吞吐率:7.79req/s ] 内存消耗:6,640.63kb 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=31c3f8f92f2ca280f353d3a3e87d30d6
- CONNECT:[ UseTime:0.000930s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.017752s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001970s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'feicheng' LIMIT 1 [ RunTime:0.006534s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1985 LIMIT 1 [ RunTime:0.002691s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1980 LIMIT 1 [ RunTime:0.000479s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1981 LIMIT 1 [ RunTime:0.000619s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1982 LIMIT 1 [ RunTime:0.000452s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1983 LIMIT 1 [ RunTime:0.000350s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1984 LIMIT 1 [ RunTime:0.000295s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1985 LIMIT 1 [ RunTime:0.002047s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.006719s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1985 LIMIT 1 [ RunTime:0.002141s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 106 LIMIT 1 [ RunTime:0.004689s ]
- SELECT * FROM `sa_area` WHERE `id` IN (323,408,328,325,324,320,327,321,315,313) [ RunTime:0.000753s ]
- SELECT * FROM `sa_area` WHERE `id` IN (136,134,95,118,418,109,104,127,132,133) [ RunTime:0.001061s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,335,336,354,358,359,363,95,342,366) [ RunTime:0.000437s ]
- SELECT * FROM `sa_area` WHERE `id` IN (127,224,131,117,225,159,226,465,165,466) [ RunTime:0.000551s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.010422s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001151s ]

0.135545s