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Abstract
ArcGIS Spatial Analysis provides tools to serve a purpose to create model for solving spatial problems. A set of steps can be used to build a model for heavy metals in air of Baghdad city that represents lead (Pb), copper (Cu), zinc (Zn) through a group of measurement stations distributed in Baghdad , there were 21 stations. The results showed that the highest concentration of Pb in air of Baghdad recorded in Mansor (3.75 μg/m3), while the lowest concentration of it in Hurria (0.37 μg/m3). Overall average of Pb concentration (1.82 μg/m3), the lowest of Iraqi and WHO standards (5 μg/m3, 2 μg/m3) respectively. The highest concentration of Cu is recorded in Sadr City (6.52 μg/m3), while the lowest concentration in Hurria (0.61 μg/m3). The overall average of Cu concentration (2.67 μg/m3), which is higher than the WHO standard (0.257 μg / m3) and lower than the Iraqi standard (5 μg/m3). The results also showed that the highest concentration of Zn is recorded in Shaab (13.8 μg/m3), while the lowest concentration is recorded in Kasra wa Atash (3.62 μg/m3). Overall average of Zn concentration (6.72 μg/m3), which is higher than the Iraqi standard (6 μg/m3). The different modes of transport that increased in recent years are consider most important sources of heavy metals in the air of Baghdad city, in addition to industrial activities deployed within the city, such as factories , car repair shops and foundries different.
