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 : 2026-05-01 15:54:59 HTTP/2.0 GET : https://m.tianqibao.com/aqi/xianyinggong.html
- 运行时间 : 0.345787s [ 吞吐率:2.89req/s ] 内存消耗:6,661.33kb 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=7e9c532cb0674527094cd44954c4123c
- CONNECT:[ UseTime:0.003950s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.018489s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.006077s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.007158s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.003138s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'xianyinggong' LIMIT 1 [ RunTime:0.002099s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3597 LIMIT 1 [ RunTime:0.003037s ]
- SELECT * FROM `sa_area` WHERE `pid` = 193 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.012781s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1715 LIMIT 1 [ RunTime:0.005347s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1716 LIMIT 1 [ RunTime:0.002638s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1717 LIMIT 1 [ RunTime:0.003582s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1718 LIMIT 1 [ RunTime:0.002526s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1719 LIMIT 1 [ RunTime:0.003439s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1720 LIMIT 1 [ RunTime:0.002619s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1721 LIMIT 1 [ RunTime:0.004171s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1722 LIMIT 1 [ RunTime:0.002693s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1723 LIMIT 1 [ RunTime:0.002422s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1724 LIMIT 1 [ RunTime:0.001327s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1725 LIMIT 1 [ RunTime:0.001761s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1726 LIMIT 1 [ RunTime:0.001600s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1727 LIMIT 1 [ RunTime:0.001562s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.002926s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 3597 LIMIT 1 [ RunTime:0.005443s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.012951s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 35 LIMIT 1 [ RunTime:0.035990s ]
- SELECT * FROM `sa_area` WHERE `id` IN (325,324,312,311,468,328,327,323,313,305) [ RunTime:0.003330s ]
- SELECT * FROM `sa_area` WHERE `id` IN (449,418,446,95,136,419,448,450,127,132) [ RunTime:0.003147s ]
- SELECT * FROM `sa_area` WHERE `id` IN (364,416,95,393,366,358,359,363,342,365) [ RunTime:0.003117s ]
- SELECT * FROM `sa_area` WHERE `id` IN (464,466,465,368,467,453,459,63,64,52) [ RunTime:0.002779s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.002907s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.002984s ]

0.364251s