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 : 2026-07-16 17:18:02 HTTP/2.0 GET : https://m.tianqibao.com/aqi/rangtangxian.html
- 运行时间 : 0.127502s [ 吞吐率:7.84req/s ] 内存消耗:6,691.28kb 文件加载:241
- 查询信息 : 30 queries
- 缓存信息 : 17 reads,6 writes
- 会话信息 : SESSION_ID=0052af81d7139309163c576b0564870a
- CONNECT:[ UseTime:0.000816s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.011488s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001100s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.002453s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.000820s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'rangtangxian' LIMIT 1 [ RunTime:0.002752s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2857 LIMIT 1 [ RunTime:0.000901s ]
- SELECT * FROM `sa_area` WHERE `pid` = 385 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.005741s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2848 LIMIT 1 [ RunTime:0.000858s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2849 LIMIT 1 [ RunTime:0.000701s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2850 LIMIT 1 [ RunTime:0.000706s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2851 LIMIT 1 [ RunTime:0.000690s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2852 LIMIT 1 [ RunTime:0.000755s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2853 LIMIT 1 [ RunTime:0.001560s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2854 LIMIT 1 [ RunTime:0.000713s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2855 LIMIT 1 [ RunTime:0.000789s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2856 LIMIT 1 [ RunTime:0.000751s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2857 LIMIT 1 [ RunTime:0.000844s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2858 LIMIT 1 [ RunTime:0.000742s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2859 LIMIT 1 [ RunTime:0.000785s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2860 LIMIT 1 [ RunTime:0.000731s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001048s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 2857 LIMIT 1 [ RunTime:0.004769s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.007106s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 36 LIMIT 1 [ RunTime:0.007070s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,366,362,360,337,428,381,380,377,374) [ RunTime:0.001493s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,446,419,449,448,450,95,412,385,414) [ RunTime:0.001136s ]
- SELECT * FROM `sa_area` WHERE `id` IN (97,414,449,450,303,396,468,95,345,417) [ RunTime:0.001042s ]
- SELECT * FROM `sa_area` WHERE `id` IN (460,452,463,68,64,60,56,54,58,36) [ RunTime:0.000946s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.001389s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000695s ]

0.134160s