What equipment is used to measure the concentration of fumigants in the air?

The use of an ambient air analyzer is particularly significant when measuring the concentration of fumigants in the air because it is specifically designed for real-time monitoring and assessment of air quality. This type of instrument can provide accurate readings of various volatile organic compounds, including fumigants, by sampling the air and analyzing the concentration levels.

Other equipment, such as a spectrophotometer or gas chromatograph, while useful for certain analysis and research applications, are not as straightforward for field measurements of airborne fumigants. A spectrophotometer is typically employed for measuring light absorption and may not be equipped to handle gas-phase samples directly, while a gas chromatograph requires more complex sample preparation and handling techniques, making it less convenient for immediate air quality testing on-site.

Hence, the ambient air analyzer is the most appropriate choice for effectively measuring the concentration of fumigants in the air.