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Comparing thermal strain in outdoor maintenance and indoor service workers in the mining industry during summer

Fig 4

Rating of perceived exertion, thermal comfort and thermal sensation for workers over the shift (n = 24).

*indicates significant main effect for shift (p<0.05); ^indicates significant main effect for occupation (p<0.05).

Fig 4

doi: https://doi.org/10.1371/journal.pone.0292436.g004