Legend (Nickel_SDOnroad_Mobile_Source)

Small_Roads (0) ≤0.00719 ≤0.01231 ≤0.01694 ≤0.02254 ≤0.03299 Major_Roads (1) ≤0.16910 ≤0.28881 ≤0.42162 ≤0.59060 ≤0.91224 Onroad_Mobile_Sources_from_SD (2) ≤0.17884 ≤0.30597 ≤0.44187 ≤0.61209 ≤0.93530