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 14:47:40 HTTP/2.0 GET : https://m.tianqibao.com/aqi/jiaozhou.html
- 运行时间 : 0.846723s [ 吞吐率:1.18req/s ] 内存消耗:6,654.31kb 文件加载:241
- 查询信息 : 24 queries
- 缓存信息 : 18 reads,3 writes
- 会话信息 : SESSION_ID=49affc0f2f5772a7f1fce0123af9c5f9
- CONNECT:[ UseTime:0.005828s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.023288s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.011534s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'jiaozhou' LIMIT 1 [ RunTime:0.014629s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1918 LIMIT 1 [ RunTime:0.001623s ]
- SELECT * FROM `sa_area` WHERE `pid` = 214 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.041445s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1911 LIMIT 1 [ RunTime:0.008105s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1912 LIMIT 1 [ RunTime:0.002916s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1913 LIMIT 1 [ RunTime:0.000623s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1914 LIMIT 1 [ RunTime:0.001350s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1915 LIMIT 1 [ RunTime:0.000663s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1916 LIMIT 1 [ RunTime:0.000906s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1917 LIMIT 1 [ RunTime:0.001152s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1918 LIMIT 1 [ RunTime:0.000509s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1919 LIMIT 1 [ RunTime:0.000479s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1920 LIMIT 1 [ RunTime:0.000430s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000926s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1918 LIMIT 1 [ RunTime:0.017295s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 121 LIMIT 1 [ RunTime:0.016964s ]
- SELECT * FROM `sa_area` WHERE `id` IN (408,324,323,328,325,321,320,406,327,319) [ RunTime:0.000834s ]
- SELECT * FROM `sa_area` WHERE `id` IN (136,134,95,109,127,133,418,419,99,104) [ RunTime:0.001872s ]
- SELECT * FROM `sa_area` WHERE `id` IN (97,259,360,361,414,362,396,359,366,363) [ RunTime:0.006245s ]
- SELECT * FROM `sa_area` WHERE `id` IN (128,466,161,467,159,105,464,126,465,463) [ RunTime:0.007723s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.114382s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.010112s ]

0.853429s