Trinity Consultants, an international environmental consulting firm that specializes in industrial air quality issues, has combined with Smith Aldridge, an environmental consulting company located in Atlanta, Georgia.

The merger of these two air-quality-focused firms provides enhanced service capability for companies in Georgia and the broader southeastern US, the firms say.

Trinity Consultants is one of the nine leading environment, health and safety information management and technology services firms, according to a Verdantix report published last month.