I am not only a Realtor in Pleasanton, but grew up here and after college, moved back to raise my family, I have never heard of any real issues regarding the air quality. I agree with the other answer posted that there are some issues in other cities, but this doesn't ever seem to have been a problem in Pleasanton. We do have spare the air days and you can find info on this on the city of pleasanton website, but Pleasanton actually has a very proactive approach to deal with ANY environmental type topics. Pleasanton is a great place to live and raise a family and the schools are phenomenal. I have one child in a middle school, one in an elementary school and a baby who is part of the local mother's group. I just searched air quality in Pleasanton on the internet and found nothing that would indicate that the info you received is accurate. If you would like any additional info or assistance in your search, please call me at 925-998-0382. Good luck to you. You will love it here.
Michele Castillo De Almeida
JSCA Real Estate Group