Research Article
The Impact of Nonlocal Ammonia on Submicron Particulate Matter and Visibility Degradation in Urban Shanghai
Table 1
Recoveries of the instruments during the measurement period.
| | Instrument | Valid data (h) | Missing data (h) |
| | MARGA (ADI 2080) | 660 | 84 | | PM1 monitor (SHARP 5030) | 744 | 0 | | Visibility sensor (Belfort 5000) | 743 | 1 | | Automatic weather station (Hydro Met) | 744 | 0 |
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