中国环境保护部实时发布
龙门洞森林公园空气质量指数
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?
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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 : 2026-04-21 00:19:44 HTTP/2.0 GET : https://m.tianqibao.com/aqi/lmdslgy.html
- 运行时间 : 0.183336s [ 吞吐率:5.45req/s ] 内存消耗:6,508.83kb 文件加载:241
- 查询信息 : 26 queries
- 缓存信息 : 17 reads,3 writes
- 会话信息 : SESSION_ID=18f1a29075540cb49cdf451f2f4d0e8b
- CONNECT:[ UseTime:0.001660s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
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- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.002027s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'lmdslgy' LIMIT 1 [ RunTime:0.004487s ]
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- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 126 LIMIT 1 [ RunTime:0.005189s ]
- SELECT * FROM `sa_area` WHERE `id` IN (369,286,196,406,325,323,312,305,208,199) [ RunTime:0.003293s ]
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