Cassie recently wrote us the following:
I started today (Washington is AWESOME). I will be researching several respiratory irritants and their effects to humans if released in mixtures. There are over 3000 chemicals in their database, and each is classified by its specific modes of action, PAC's and health code numbers. Using this data, a hazard index is generated for the mixture of chemicals. If over one, then action may need to be taken to address adverse human health effects.