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 : 2026-04-05 06:05:30 HTTP/2.0 GET : https://m.tianqibao.com/aqi/ganxianqu.html
- 运行时间 : 0.077474s [ 吞吐率:12.91req/s ] 内存消耗:6,507.01kb 文件加载:241
- 查询信息 : 35 queries
- 缓存信息 : 17 reads,9 writes
- 会话信息 : SESSION_ID=127afcbb0effcc371467905ac6e53b56
- CONNECT:[ UseTime:0.000536s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.000575s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.000586s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.000785s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.000436s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'ganxianqu' LIMIT 1 [ RunTime:0.000570s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1836 LIMIT 1 [ RunTime:0.000367s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1834 LIMIT 1 [ RunTime:0.000705s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1835 LIMIT 1 [ RunTime:0.000271s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1836 LIMIT 1 [ RunTime:0.000248s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1837 LIMIT 1 [ RunTime:0.000268s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1838 LIMIT 1 [ RunTime:0.000253s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1839 LIMIT 1 [ RunTime:0.000271s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1840 LIMIT 1 [ RunTime:0.000253s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1841 LIMIT 1 [ RunTime:0.000254s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1842 LIMIT 1 [ RunTime:0.000333s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1843 LIMIT 1 [ RunTime:0.000447s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1844 LIMIT 1 [ RunTime:0.000270s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1845 LIMIT 1 [ RunTime:0.000246s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1846 LIMIT 1 [ RunTime:0.000499s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1847 LIMIT 1 [ RunTime:0.000512s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1848 LIMIT 1 [ RunTime:0.000271s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000655s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1836 LIMIT 1 [ RunTime:0.000385s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.005055s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 62 LIMIT 1 [ RunTime:0.006500s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `high_temp` DESC LIMIT 10 [ RunTime:0.001300s ]
- SELECT * FROM `sa_area` WHERE `id` IN (321,324,323,313,320,319,408,325,322,310) [ RunTime:0.000633s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `low_temp` ASC LIMIT 10 [ RunTime:0.001766s ]
- SELECT * FROM `sa_area` WHERE `id` IN (99,446,95,136,419,97,418,74,79,90) [ RunTime:0.000481s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `aqi` ASC LIMIT 10 [ RunTime:0.001256s ]
- SELECT * FROM `sa_area` WHERE `id` IN (259,360,361,410,450,362,396,366,358,359) [ RunTime:0.000469s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `aqi` DESC LIMIT 10 [ RunTime:0.001632s ]
- SELECT * FROM `sa_area` WHERE `id` IN (96,73,94,90,79,89,433,453,91,50) [ RunTime:0.000365s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.000636s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000608s ]

0.083810s