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 12:16:22 HTTP/2.0 GET : https://m.tianqibao.com/aqi/songyuan.html
- 运行时间 : 1.946436s [ 吞吐率:0.51req/s ] 内存消耗:6,656.86kb 文件加载:241
- 查询信息 : 26 queries
- 缓存信息 : 17 reads,6 writes
- 会话信息 : SESSION_ID=273f314bec20bd405804ebb053b655f2
- CONNECT:[ UseTime:0.002441s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.005792s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.001661s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.007466s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.001719s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'songyuan' LIMIT 1 [ RunTime:0.001581s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 121 LIMIT 1 [ RunTime:0.001483s ]
- SELECT * FROM `sa_area` WHERE `pid` = 7 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.000389s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 115 LIMIT 1 [ RunTime:0.000537s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 116 LIMIT 1 [ RunTime:0.000774s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 117 LIMIT 1 [ RunTime:0.000407s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 118 LIMIT 1 [ RunTime:0.000566s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 119 LIMIT 1 [ RunTime:0.000535s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 120 LIMIT 1 [ RunTime:0.000711s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 121 LIMIT 1 [ RunTime:0.000758s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 122 LIMIT 1 [ RunTime:0.001467s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 123 LIMIT 1 [ RunTime:0.000372s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.002396s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 121 LIMIT 1 [ RunTime:0.008441s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:1.723238s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 31 LIMIT 1 [ RunTime:0.039434s ]
- SELECT * FROM `sa_area` WHERE `id` IN (369,321,320,305,324,322,319,313,310,309) [ RunTime:0.000686s ]
- SELECT * FROM `sa_area` WHERE `id` IN (419,136,446,451,412,418,443,449,450,385) [ RunTime:0.001375s ]
- SELECT * FROM `sa_area` WHERE `id` IN (97,259,360,361,410,415,450,475,477,362) [ RunTime:0.000653s ]
- SELECT * FROM `sa_area` WHERE `id` IN (454,437,455,459,452,453,464,467,465,91) [ RunTime:0.000608s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.005762s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.001500s ]

1.954145s