Guanzhou Air quality monitor by American Embassy

https://twitter.com/guangzhou_air
04-04-2013 00:00; PM2.5; 103.0; 173; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1h

04-03-2013 23:00; PM2.5; 112.0; 178; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2h

04-03-2013 22:00; PM2.5; 120.0; 182; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  3h

04-03-2013 21:00; PM2.5; 125.0; 185; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  4h

04-03-2013 20:00; PM2.5; 111.0; 177; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  5h

04-03-2013 19:00; PM2.5; 115.0; 180; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  6h

04-03-2013 18:00; PM2.5; 114.0; 179; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  7h

04-03-2013 17:00; PM2.5; 105.0; 174; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  8h

04-03-2013 16:00; PM2.5; 106.0; 174; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  9h

04-03-2013 15:00; PM2.5; 103.0; 173; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  10h

04-03-2013 14:00; PM2.5; 107.0; 175; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  11h

04-03-2013 13:00; PM2.5; 101.0; 171; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  12h

04-03-2013 12:00; PM2.5; 85.0; 162; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  13h

04-03-2013 11:00; PM2.5; 75.0; 156; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  14h

04-03-2013 10:00; PM2.5; 56.0; 135; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  15h

04-03-2013 09:00; PM2.5; 59.0; 140; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  16h

04-03-2013 08:00; PM2.5; 56.0; 135; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  17h

04-03-2013 07:00; PM2.5; 50.0; 125; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  18h

04-03-2013 06:00; PM2.5; 37.0; 103; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  19h

04-03-2013 05:00; PM2.5; 49.0; 123; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  20h

04-03-2013 04:00; PM2.5; 65.0; 149; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  21h

04-03-2013 03:00; PM2.5; 91.0; 166; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  22h

04-03-2013 02:00; PM2.5; 107.0; 175; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  23h

04-03-2013 01:00; PM2.5; 95.0; 168; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-03-2013 00:00; PM2.5; 96.0; 169; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 23:00; PM2.5; 93.0; 167; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 22:00; PM2.5; 97.0; 169; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 21:00; PM2.5; 121.0; 183; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 20:00; PM2.5; 126.0; 186; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 19:00; PM2.5; 140.0; 194; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 18:00; PM2.5; 153.0; 203; Very Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 17:00; PM2.5; 116.0; 180; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 16:00; PM2.5; 124.0; 185; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  2 Apr

04-02-2013 15:00; PM2.5; 114.0; 179; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 14:00; PM2.5; 118.0; 181; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 13:00; PM2.5; 166.0; 216; Very Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 12:00; PM2.5; 184.0; 234; Very Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 11:00; PM2.5; 144.0; 196; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 10:00; PM2.5; 149.0; 199; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 09:00; PM2.5; 135.0; 191; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 08:00; PM2.5; 163.0; 213; Very Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 07:00; PM2.5; 162.0; 212; Very Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 06:00; PM2.5; 160.0; 210; Very Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 05:00; PM2.5; 142.0; 195; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 04:00; PM2.5; 148.0; 199; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 03:00; PM2.5; 132.0; 189; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 02:00; PM2.5; 140.0; 194; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 01:00; PM2.5; 117.0; 181; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-02-2013 00:00; PM2.5; 109.0; 176; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 23:00; PM2.5; 91.0; 166; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 22:00; PM2.5; 105.0; 174; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 21:00; PM2.5; 108.0; 176; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 20:00; PM2.5; 130.0; 188; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 19:00; PM2.5; 103.0; 173; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 18:00; PM2.5; 115.0; 180; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 17:00; PM2.5; 103.0; 173; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 16:00; PM2.5; 72.0; 155; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  1 Apr

04-01-2013 15:00; PM2.5; 70.0; 154; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 14:00; PM2.5; 64.0; 148; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 13:00; PM2.5; 54.0; 131; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 12:00; PM2.5; 57.0; 136; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 11:00; PM2.5; 45.0; 117; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 10:00; PM2.5; 45.0; 117; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 09:00; PM2.5; 54.0; 131; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 08:00; PM2.5; 41.0; 110; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 07:00; PM2.5; 56.0; 135; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 06:00; PM2.5; 57.0; 136; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 05:00; PM2.5; 45.0; 117; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 04:00; PM2.5; 48.0; 121; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 03:00; PM2.5; 51.0; 126; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 02:00; PM2.5; 48.0; 121; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 01:00; PM2.5; 56.0; 135; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

04-01-2013 00:00; PM2.5; 50.0; 125; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 23:00; PM2.5; 57.0; 136; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 22:00; PM2.5; 44.0; 115; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 21:00; PM2.5; 71.0; 154; Unhealthy (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 20:00; PM2.5; 59.0; 140; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 19:00; PM2.5; 62.0; 144; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 18:00; PM2.5; 45.0; 117; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 17:00; PM2.5; 44.0; 115; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 16:00; PM2.5; 51.0; 126; Unhealthy for Sensitive Groups (at 24-hour exposure at this level)

GuangzhouAir  31 Mar

03-31-2013 15:00; PM2.5; 54.0; 131; Unhealthy