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 : 2026-05-26 09:58:23 HTTP/2.0 GET : https://m.tianqibao.com/aqi/suchengqu.html
- 运行时间 : 2.611726s [ 吞吐率:0.38req/s ] 内存消耗:6,648.92kb 文件加载:241
- 查询信息 : 23 queries
- 缓存信息 : 17 reads,6 writes
- 会话信息 : SESSION_ID=9ecc96317ed712556fbf8804d45e8168
- CONNECT:[ UseTime:0.003655s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.006637s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.003001s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.005923s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.001367s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'suchengqu' LIMIT 1 [ RunTime:0.001025s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1500 LIMIT 1 [ RunTime:0.000358s ]
- SELECT * FROM `sa_area` WHERE `pid` = 165 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.000586s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1500 LIMIT 1 [ RunTime:0.000322s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1501 LIMIT 1 [ RunTime:0.000296s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1502 LIMIT 1 [ RunTime:0.000266s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1503 LIMIT 1 [ RunTime:0.000261s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1504 LIMIT 1 [ RunTime:0.000273s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1505 LIMIT 1 [ RunTime:0.000735s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001827s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1500 LIMIT 1 [ RunTime:0.014267s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:1.804075s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 4 LIMIT 1 [ RunTime:0.013900s ]
- SELECT * FROM `sa_area` WHERE `id` IN (369,321,320,305,324,322,319,313,310,309) [ RunTime:0.000956s ]
- SELECT * FROM `sa_area` WHERE `id` IN (419,136,446,451,412,418,443,449,450,385) [ RunTime:0.000973s ]
- SELECT * FROM `sa_area` WHERE `id` IN (450,451,95,256,442,358,359,363,366,179) [ RunTime:0.000643s ]
- SELECT * FROM `sa_area` WHERE `id` IN (456,454,91,464,467,453,433,463,476,100) [ RunTime:0.000516s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.048454s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.003939s ]

2.623317s