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 : 2026-04-01 17:20:39 HTTP/2.0 GET : https://m.tianqibao.com/aqi/xiushuixian.html
- 运行时间 : 0.180067s [ 吞吐率:5.55req/s ] 内存消耗:6,662.00kb 文件加载:241
- 查询信息 : 27 queries
- 缓存信息 : 17 reads,3 writes
- 会话信息 : SESSION_ID=7515e97b8cdd5e7ae06a849558101ef0
- CONNECT:[ UseTime:0.004069s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.005211s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.007115s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'xiushuixian' LIMIT 1 [ RunTime:0.002281s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1820 LIMIT 1 [ RunTime:0.000389s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1816 LIMIT 1 [ RunTime:0.000328s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1817 LIMIT 1 [ RunTime:0.000439s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1818 LIMIT 1 [ RunTime:0.000386s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1819 LIMIT 1 [ RunTime:0.000333s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1820 LIMIT 1 [ RunTime:0.001420s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1821 LIMIT 1 [ RunTime:0.000313s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1822 LIMIT 1 [ RunTime:0.000307s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1823 LIMIT 1 [ RunTime:0.000278s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1824 LIMIT 1 [ RunTime:0.000502s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1825 LIMIT 1 [ RunTime:0.000345s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1826 LIMIT 1 [ RunTime:0.000309s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1827 LIMIT 1 [ RunTime:0.000494s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1828 LIMIT 1 [ RunTime:0.000577s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000764s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1820 LIMIT 1 [ RunTime:0.011030s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.007396s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 4 LIMIT 1 [ RunTime:0.005170s ]
- SELECT * FROM `sa_area` WHERE `id` IN (408,324,325,323,406,328,327,314,369,326) [ RunTime:0.001073s ]
- SELECT * FROM `sa_area` WHERE `id` IN (136,134,95,109,127,133,418,419,99,104) [ RunTime:0.001510s ]
- SELECT * FROM `sa_area` WHERE `id` IN (97,259,360,361,414,362,396,359,366,363) [ RunTime:0.000402s ]
- SELECT * FROM `sa_area` WHERE `id` IN (128,466,161,467,159,105,464,126,465,463) [ RunTime:0.000358s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.000784s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000642s ]

0.186033s