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 : 2026-04-24 00:42:01 HTTP/2.0 GET : https://m.tianqibao.com/aqi/huangzesi.html
- 运行时间 : 0.377001s [ 吞吐率:2.65req/s ] 内存消耗:6,519.39kb 文件加载:241
- 查询信息 : 23 queries
- 缓存信息 : 17 reads,5 writes
- 会话信息 : SESSION_ID=44f70908cb9c4adaac21b6e5231f639b
- CONNECT:[ UseTime:0.002396s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.034656s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.002438s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'huangzesi' LIMIT 1 [ RunTime:0.003991s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 5053 LIMIT 1 [ RunTime:0.002877s ]
- SELECT * FROM `sa_area` WHERE `pid` = 373 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.027423s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2766 LIMIT 1 [ RunTime:0.001284s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2767 LIMIT 1 [ RunTime:0.001933s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2768 LIMIT 1 [ RunTime:0.001302s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2769 LIMIT 1 [ RunTime:0.001287s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2770 LIMIT 1 [ RunTime:0.002098s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2771 LIMIT 1 [ RunTime:0.001152s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 2772 LIMIT 1 [ RunTime:0.001000s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.003322s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 5053 LIMIT 1 [ RunTime:0.005344s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.015343s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 44 LIMIT 1 [ RunTime:0.023245s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `high_temp` DESC LIMIT 10 [ RunTime:0.004439s ]
- SELECT * FROM `sa_area` WHERE `id` IN (325,315,328,327,320,316,459,324,323,319) [ RunTime:0.001589s ]
- SELECT * FROM `sa_area` WHERE `id` IN (446,450,127,132,133,418,443,449,131,134) [ RunTime:0.001268s ]
- SELECT * FROM `sa_area` WHERE `id` IN (410,468,478,366,342,358,363,95,312,359) [ RunTime:0.001857s ]
- SELECT * FROM `sa_area` WHERE `id` IN (464,467,465,463,476,466,368,452,435,433) [ RunTime:0.006210s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.009809s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.005139s ]

0.387987s