TY  - JOUR
AU  - Soltani, Tahereh
AU  - Gandomkar, Amir
AU  - Ataei, Hooshmand
AU  - Mofidi, Abbas
TI  - A Statistical Study of Mashhad׳s Air Polluted Days
JO  - Journal of Geography and Environmental  Studies
VL  - 5
IS  - 17
SP  - 127
EP  - 133
PY  - 2016
DO  - 
ER  -