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 : 2026-04-18 14:28:42 HTTP/2.0 GET : https://m.tianqibao.com/aqi/guangfujingqu.html
- 运行时间 : 0.204885s [ 吞吐率:4.88req/s ] 内存消耗:6,659.49kb 文件加载:241
- 查询信息 : 27 queries
- 缓存信息 : 17 reads,6 writes
- 会话信息 : SESSION_ID=db47f9d775ca7ce4a25951543a4beda7
- CONNECT:[ UseTime:0.001370s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.002053s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001216s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'guangfujingqu' LIMIT 1 [ RunTime:0.000526s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 5579 LIMIT 1 [ RunTime:0.000527s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1437 LIMIT 1 [ RunTime:0.000931s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1438 LIMIT 1 [ RunTime:0.000810s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1439 LIMIT 1 [ RunTime:0.001305s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1440 LIMIT 1 [ RunTime:0.000876s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1441 LIMIT 1 [ RunTime:0.001813s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1442 LIMIT 1 [ RunTime:0.001474s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1443 LIMIT 1 [ RunTime:0.003004s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1444 LIMIT 1 [ RunTime:0.001302s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1445 LIMIT 1 [ RunTime:0.001929s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1446 LIMIT 1 [ RunTime:0.001387s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.002781s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 5579 LIMIT 1 [ RunTime:0.002162s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.008099s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 42 LIMIT 1 [ RunTime:0.031176s ]
- SELECT * FROM `sa_area` WHERE `id` IN (408,369,362,360,359,329,325,259,357,356) [ RunTime:0.000687s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `low_temp` ASC LIMIT 10 [ RunTime:0.004042s ]
- SELECT * FROM `sa_area` WHERE `id` IN (446,418,449,450,385,419,127,443,470,475) [ RunTime:0.002114s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `aqi` ASC LIMIT 10 [ RunTime:0.009982s ]
- SELECT * FROM `sa_area` WHERE `id` IN (389,451,95,366,358,363,394,342,359,365) [ RunTime:0.001343s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `aqi` DESC LIMIT 10 [ RunTime:0.003434s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,467,76,3548,42,46,41,38,40,39) [ RunTime:0.002288s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.002384s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001815s ]

0.213776s