DEVELOPMENT OF A THICK-FILM AMMONIA SENSOR FOR LIVESTOCK BUILDINGS

A major environmental problem is the hindrance caused by agricultural activities related to livestock breeding, especially in the neighbourh ood of urban settlements. It has been shown that the main part of the ammonia emission into the atmosphere in Europe is coming from livestoc k wastes. To measure, and control, the total ammonia emission from ind ividual livestock buildings, as well as the indoor air quality in the various building compartments, low cost reliable ammonia sensors are r equired (in combination with a ventilation rate sensor for emission me asurements). The development of an ammonia sensitive device is present ed. The working range required for livestock buildings (0-150 ppm NH3) is covered by the sensor.