Which is true regarding PM2.5 versus PM10 in regards to Feature 01 / Air Quality Standards?
a) PM2.5 and PM10 are not addressed by Feature 01 / Air Quality Standards
b) The limit for PM2.5 is lower than for PM10
c) The limit for PM2.5 is the same as PM10
d) The limit for PM2.5 is higher than for PM10
e) PM2.5 represents larger particles, and PM10 represents smaller particles