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 : 2026-01-07 15:51:28 HTTP/2.0 GET : https://m.tianqibao.com/aqi/nanping.html
- 运行时间 : 0.081159s [ 吞吐率:12.32req/s ] 内存消耗:6,663.53kb 文件加载:241
- 查询信息 : 25 queries
- 缓存信息 : 17 reads,5 writes
- 会话信息 : SESSION_ID=ef09119129479c8798df3aa9f10c2b44
- CONNECT:[ UseTime:0.000415s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.000744s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.000627s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.002084s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.001967s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'nanping' LIMIT 1 [ RunTime:0.000787s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 199 LIMIT 1 [ RunTime:0.000932s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 193 LIMIT 1 [ RunTime:0.000425s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 194 LIMIT 1 [ RunTime:0.000324s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 195 LIMIT 1 [ RunTime:0.000340s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 196 LIMIT 1 [ RunTime:0.000387s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 197 LIMIT 1 [ RunTime:0.000343s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 198 LIMIT 1 [ RunTime:0.000345s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 199 LIMIT 1 [ RunTime:0.000335s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 200 LIMIT 1 [ RunTime:0.000313s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 201 LIMIT 1 [ RunTime:0.000668s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000582s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 199 LIMIT 1 [ RunTime:0.000489s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.003390s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 57 LIMIT 1 [ RunTime:0.003596s ]
- SELECT * FROM `sa_area` WHERE `id` IN (311,327,325,312,411,410,408,326,317,314) [ RunTime:0.001152s ]
- SELECT * FROM `sa_area` WHERE `id` IN (130,136,127,134,95,135,124,131,125,446) [ RunTime:0.000794s ]
- SELECT * FROM `sa_area` WHERE `id` IN (445,123,312,352,475,477,100,359,136,326) [ RunTime:0.001165s ]
- SELECT * FROM `sa_area` WHERE `id` IN (474,147,457,143,471,466,159,137,142,140) [ RunTime:0.000570s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.000911s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000403s ]

0.088003s