in the last month i have noticed 2 small patches of hair loss at the front of my scalp. i am only 23 and have been to a dermotolagist about this problem. he mentioned that i have tracing alopecia, he purscribed medication and said it would grow back. my only question is .... at the job i am working at ,the location is in an industrial location. lots of trucks and fums. we have a junk yard right in front of our work and also behind us. i have not worked here for long when my hair loss occured. the odd thing is that their is only 1 other female in the office and she is experienceing hair loss as well. i was wondering if the environment around me could be causing this?