Exposure Assessment at a Pullet Barn - A Case Study

Figures & data

Figure 1. Layout of barn showing location of ventilation systems.

Figure 2. Set up of sampling station.

Table 1. Ammonia and total dust concentrations at each sampling location from three sampling sessions.

Parameters	Concentration
	Baseline		Intermediate		Final
	Station I	Station II	Station I	Station II	Station I	Station II
Ammonia (Active)	0.6 ppm	<0.6 ppm	1.1 ppm	1.2 ppm	30.0 ppm	22.0 ppm
Ammonia (Passive)	<2.7 ppm	<2.7 ppm	<2.6 ppm	<2.7 ppm	28.0 ppm	23.0 ppm
Total dust	1.2 mg/m^3	1.1 mg/m^3	18.0 mg/m^3	16.0 mg/m^3	50.0 mg/m^3	43.0 mg/m^3

Notes: ppm = parts per million; mg/m³ = milligrams per cubic meter.