An affordable, easily deployable, and portable air monitor designed for measuring trace level for ambient air pollution. The unique sampling design allows for real-time data and filter gravimetric analysis utilizing the FRM 47mm Cassette located directly behind the optical sensor. EPAM-5000 offers a weather tight carrying case, temperature compensated electronics, easy to clean optical sensor and a standard 24 hour battery or continuous sampling with solar power panel accessory. Network up to 8 Haz-Dust™ Model EPAM-5000 systems and add up to 5 miles wireless data transmission to central PC or MAC computer.