City | Population (2010) | Height above sea level (m) | Geographic location of sampling sites |
Agua Prieta | 79,138 | 1220 | 31˚18'41.76''N 109˚32'07.33''W |
Nogales | 220,292 | 1238 | 31˚19'28.58''N 110˚57'18.44''W |
Puerto Peñasco | 57,342 | 10 | 31˚20'30.29''N 113˚30'58.46''W |
Hermosillo | 784,382 | 227 | 29˚02'38.50''N 110˚57'27.80''W |
Guaymas | 149,299 | 20 | 27˚54'51.53''N 110˚54'11.91''W |
Obregón | 409,310 | 61 | 27˚29'01.92''N 109˚56´51.93''W |