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 : 2026-03-07 09:58:40 HTTP/2.0 GET : https://m.tianqibao.com/aqi/jilinshi.html
- 运行时间 : 0.624476s [ 吞吐率:1.60req/s ] 内存消耗:6,642.09kb 文件加载:241
- 查询信息 : 23 queries
- 缓存信息 : 17 reads,3 writes
- 会话信息 : SESSION_ID=cfbbdce2950b916019f5ee044c7f913b
- CONNECT:[ UseTime:0.000836s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.003026s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001139s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'jilinshi' LIMIT 1 [ RunTime:0.001153s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 116 LIMIT 1 [ RunTime:0.000292s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 115 LIMIT 1 [ RunTime:0.000331s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 116 LIMIT 1 [ RunTime:0.000282s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 117 LIMIT 1 [ RunTime:0.000407s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 118 LIMIT 1 [ RunTime:0.000227s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 119 LIMIT 1 [ RunTime:0.000250s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 120 LIMIT 1 [ RunTime:0.000232s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 121 LIMIT 1 [ RunTime:0.000263s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 122 LIMIT 1 [ RunTime:0.000240s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 123 LIMIT 1 [ RunTime:0.000230s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001981s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 116 LIMIT 1 [ RunTime:0.010256s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.500032s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 52 LIMIT 1 [ RunTime:0.016303s ]
- SELECT * FROM `sa_area` WHERE `id` IN (408,327,325,411,369,324,323,314,410,311) [ RunTime:0.001629s ]
- SELECT * FROM `sa_area` WHERE `id` IN (95,130,136,127,134,132,131,125,133,123) [ RunTime:0.000844s ]
- SELECT * FROM `sa_area` WHERE `id` IN (468,95,366,363,385,312,358,313,246,359) [ RunTime:0.001811s ]
- SELECT * FROM `sa_area` WHERE `id` IN (467,466,465,464,461,471,253,243,474,410) [ RunTime:0.000888s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.001061s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000394s ]

0.630841s