Evaluation of Low-Cost Sensors for Ambient PM_2.5 Monitoring

Figure 10

Results of linear fittings in different relative humidity (RH) ranges for 1-hour averaged data: (a) SDS011 (Nova Fitness), (b) ZH03A (Winsen), (c) PMS7003 (Plantower), and (d) OPC-N2 (Alphasense). in the brackets indicates the number of samples used for fitting.

(a)

(b)

(c)

(d)