EMCA Air Quality Regulation 2014 Categories	Category definition	Identified sampling sites	Site description
Industrial area	Industrial designated areas	Industrial area road C	Manufacturing zone, Unpaved roads, Big trucks on the road
Industrial area	Industrial designated areas	Industrial area—Enterprise road	Manufacturing zone, Unpaved roads, Big trucks on the road
Residential, rural and other Areas	Residential designated areas	Kayole and Embakasi	Unpaved Roads, tall residential buildings, Burning tyres, High traffic
Controlled Areas	Residential areas, Hospitals, National Parks, Reserves and Sanctuaries, conservation areas, conservation areas, Central Business Districts Any other area declared by the Authority from time to time	Moi Avenue Primary School	Tall building, traffic congestion, few unpaved areas, high day and low night population
Controlled Areas		Old Nation Round about (Koja), Ngara Jua Kali Area, Pangani Round About, Museum Hill Interchanger	Unpaved roads, temporally buildings, tall buildings and high traffic