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 : 2026-05-16 17:08:04 HTTP/2.0 GET : https://m.tianqibao.com/aqi/qingyuan.html
- 运行时间 : 0.113075s [ 吞吐率:8.84req/s ] 内存消耗:6,672.02kb 文件加载:241
- 查询信息 : 28 queries
- 缓存信息 : 18 reads,2 writes
- 会话信息 : SESSION_ID=b2a4ea3c94cb2ac472150d128350d213
- CONNECT:[ UseTime:0.000915s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.002706s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001589s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'qingyuan' LIMIT 1 [ RunTime:0.000601s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 290 LIMIT 1 [ RunTime:0.002360s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 275 LIMIT 1 [ RunTime:0.000381s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 276 LIMIT 1 [ RunTime:0.000503s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 277 LIMIT 1 [ RunTime:0.002864s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 278 LIMIT 1 [ RunTime:0.000270s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 279 LIMIT 1 [ RunTime:0.000266s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 280 LIMIT 1 [ RunTime:0.000360s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 281 LIMIT 1 [ RunTime:0.000292s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 282 LIMIT 1 [ RunTime:0.000282s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 283 LIMIT 1 [ RunTime:0.000320s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 284 LIMIT 1 [ RunTime:0.000311s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 285 LIMIT 1 [ RunTime:0.000393s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 286 LIMIT 1 [ RunTime:0.000260s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 287 LIMIT 1 [ RunTime:0.000292s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 288 LIMIT 1 [ RunTime:0.000266s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 289 LIMIT 1 [ RunTime:0.000284s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.004866s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 290 LIMIT 1 [ RunTime:0.002592s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 20 LIMIT 1 [ RunTime:0.007407s ]
- SELECT * FROM `sa_area` WHERE `id` IN (408,406,369,325,324,318,312,311,305,328) [ RunTime:0.000577s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,419,450,446,449,443,444,451,95,136) [ RunTime:0.001535s ]
- SELECT * FROM `sa_area` WHERE `id` IN (364,412,359,366,95,358,363,342,408,312) [ RunTime:0.000776s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,466,464,467,465,424,463,376,451,476) [ RunTime:0.006039s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.002523s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000534s ]

0.126567s