DescriptionNephelometer acadia.jpg A nephelometer installation at Acadia National Park. The nephelometer is being used to monitor air quality in the park
English: View of the nephelometer, a gray machine with wires and a white cylinder, from below. This instrument, called a nephelometer, measures light scattering
DescriptionSHARP and PM2.5 head.jpg A combined nephelometer/beta attenuation monitor for particulate matter with a PM2.5 impactor attached on top Source