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 : 2026-07-15 14:54:36 HTTP/2.0 GET : https://m.tianqibao.com/aqi/jintaiqu.html
- 运行时间 : 0.407146s [ 吞吐率:2.46req/s ] 内存消耗:6,673.32kb 文件加载:241
- 查询信息 : 25 queries
- 缓存信息 : 18 reads,2 writes
- 会话信息 : SESSION_ID=342f20b766ae77e8c00e3687d1506a4b
- CONNECT:[ UseTime:0.020860s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.007703s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.006386s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'jintaiqu' LIMIT 1 [ RunTime:0.001383s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3209 LIMIT 1 [ RunTime:0.019769s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3208 LIMIT 1 [ RunTime:0.029468s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3209 LIMIT 1 [ RunTime:0.008812s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3210 LIMIT 1 [ RunTime:0.001247s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3211 LIMIT 1 [ RunTime:0.002267s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3212 LIMIT 1 [ RunTime:0.007755s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3213 LIMIT 1 [ RunTime:0.000923s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3214 LIMIT 1 [ RunTime:0.000904s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3215 LIMIT 1 [ RunTime:0.000887s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3216 LIMIT 1 [ RunTime:0.000909s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3217 LIMIT 1 [ RunTime:0.000889s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3218 LIMIT 1 [ RunTime:0.001488s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3219 LIMIT 1 [ RunTime:0.001144s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.001284s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 3209 LIMIT 1 [ RunTime:0.001062s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 29 LIMIT 1 [ RunTime:0.008703s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,362,360,428,381,380,377,356,350,336) [ RunTime:0.034015s ]
- SELECT * FROM `sa_area` WHERE `id` IN (419,418,446,450,414,449,385,386,415,417) [ RunTime:0.026500s ]
- SELECT * FROM `sa_area` WHERE `id` IN (450,396,95,468,407,123,366,410,412,342) [ RunTime:0.004707s ]
- SELECT * FROM `sa_area` WHERE `id` IN (241,476,463,251,371,232,189,84,465,466) [ RunTime:0.001063s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.004729s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001206s ]

0.417558s