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 : 2026-04-03 16:58:57 HTTP/2.0 GET : https://m.tianqibao.com/aqi/zhijiangshi.html
- 运行时间 : 2.293513s [ 吞吐率:0.44req/s ] 内存消耗:6,667.38kb 文件加载:241
- 查询信息 : 28 queries
- 缓存信息 : 17 reads,4 writes
- 会话信息 : SESSION_ID=6e506513719d762cf4b6106b9cfac92b
- CONNECT:[ UseTime:0.000486s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.003381s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001465s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'zhijiangshi' LIMIT 1 [ RunTime:0.001727s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2269 LIMIT 1 [ RunTime:0.000916s ]
- SELECT * FROM `sa_area` WHERE `pid` = 250 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.008502s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2257 LIMIT 1 [ RunTime:0.002738s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2258 LIMIT 1 [ RunTime:0.000567s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2259 LIMIT 1 [ RunTime:0.000900s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2260 LIMIT 1 [ RunTime:0.000258s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2261 LIMIT 1 [ RunTime:0.000857s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2262 LIMIT 1 [ RunTime:0.000506s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2263 LIMIT 1 [ RunTime:0.000266s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2264 LIMIT 1 [ RunTime:0.000586s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2265 LIMIT 1 [ RunTime:0.000276s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2266 LIMIT 1 [ RunTime:0.000548s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2267 LIMIT 1 [ RunTime:0.000617s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2268 LIMIT 1 [ RunTime:0.000300s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2269 LIMIT 1 [ RunTime:0.000594s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000567s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 2269 LIMIT 1 [ RunTime:0.003401s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:1.856496s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 17 LIMIT 1 [ RunTime:0.180298s ]
- SELECT * FROM `sa_area` WHERE `id` IN (324,321,322,313,323,320,408,319,310,406) [ RunTime:0.001079s ]
- SELECT * FROM `sa_area` WHERE `id` IN (122,136,446,450,134,418,98,99,419,449) [ RunTime:0.000624s ]
- SELECT * FROM `sa_area` WHERE `id` IN (259,360,361,396,410,436,446,475,477,362) [ RunTime:0.000566s ]
- SELECT * FROM `sa_area` WHERE `id` IN (456,454,427,452,453,83,100,88,93,439) [ RunTime:0.057263s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.009285s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001726s ]

2.300293s