(Baltimore, MD) -- A website that calls itself an independent source about air quality called HouseFresh has ranked cities nationwide on air quality -- and Baltimore leads its list of the dirtiest cities in the country.
The study finds Baltimore is home to six of the dirtiest zip codes with the highest number of complaints about air quality.
Residents say they file complaints with the city about illegal dumping and junkyards but the violators disappear before police arrive.
Sacramento is ranked second place.
24/7 News Source contributed to this report.