空气质量小常识
- 1、口罩小知识
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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 : 2026-05-20 08:46:59 HTTP/2.0 GET : https://m.tianqibao.com/aqi/leping.html
- 运行时间 : 0.208121s [ 吞吐率:4.80req/s ] 内存消耗:6,667.64kb 文件加载:241
- 查询信息 : 23 queries
- 缓存信息 : 17 reads,8 writes
- 会话信息 : SESSION_ID=5d4eb8a00777b9f52a1c8610ed16e462
- CONNECT:[ UseTime:0.000882s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.004042s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001358s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'leping' LIMIT 1 [ RunTime:0.001348s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1810 LIMIT 1 [ RunTime:0.000590s ]
- SELECT * FROM `sa_area` WHERE `pid` = 203 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.010708s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1807 LIMIT 1 [ RunTime:0.000288s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1808 LIMIT 1 [ RunTime:0.000635s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1809 LIMIT 1 [ RunTime:0.000258s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1810 LIMIT 1 [ RunTime:0.000245s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000499s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 1810 LIMIT 1 [ RunTime:0.004299s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.015287s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 13 LIMIT 1 [ RunTime:0.006792s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `high_temp` DESC LIMIT 10 [ RunTime:0.020779s ]
- SELECT * FROM `sa_area` WHERE `id` IN (459,465,408,369,467,466,411,324,323,321) [ RunTime:0.000453s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `low_temp` ASC LIMIT 10 [ RunTime:0.001575s ]
- SELECT * FROM `sa_area` WHERE `id` IN (418,419,450,446,449,130,412,470,475,477) [ RunTime:0.000352s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `aqi` ASC LIMIT 10 [ RunTime:0.007519s ]
- SELECT * FROM `sa_area` WHERE `id` IN (450,396,342,363,366,358,359,95,365,362) [ RunTime:0.000730s ]
- SELECT * FROM `sa_area_weather` WHERE `rank` = 1 ORDER BY `aqi` DESC LIMIT 10 [ RunTime:0.001895s ]
- SELECT * FROM `sa_area` WHERE `id` IN (467,471,474,457,461,517,464,515,510,418) [ RunTime:0.003013s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.002788s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000359s ]

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