Environmental monitoring equipment, namely, air and water pollutant measurement apparatus in the nature of particle counters, air analysis apparatus, water analysis apparatus in the nature of testing instrumentation for monitoring and detecting contamination, and electronic-based instruments for measuring environmental parameters, namely, for measuring the presence of particulate and gases and aerosols in the analysis of air and water quality; computer hardware and software used to monitor the climate status of indoor and outdoor environments; nephelometers for measuring the levels of airborne or liquid particle concentrations, ambient visibility, and air and water quality source apportionment information, not for medical use; computer hardware and software system comprised of a measurement system, a power source, a communications modem and communications software for analyzing, monitoring, tracking and reporting air or water quality; environmental monitoring equipment, namely, an environmental monitoring system comprised of meters and sensors that measure air or water quality, pressure, humidity, temperature and includes alarm and reporting functions