Figure 3 presents the concentrations of PM10 versus time of the
day. High concentrations of PM10 were reported in eMbalenhle
between 04:45 and 07:45 probably due to the fact that people were
burning domestic fuel to prepare for work and they also travelled
from different areas during these times, thus elevated vehicle
emission levels were present. Figure 3 reflects that between 9:45
and 16:45, the PM10 concentrations decreased because most
residents were at work, thus the need for energy for cooking and
space heating decreased. Between 17:45 and 21:45, the
PM10 concentrations increased because residents were home and
engaged in cooking and household activities requiring domestic fuel
use.