Urbain B, Gustin P, Prouvost J F, Ansay M, Michel O, Nicks B
Université de Liège, faculté de médecine vétérinaire, laboratoire de pharmacologie et d'écotoxicologie vétérinaires, Belgique.
Vet Res. 1993;24(6):503-14.
An experimental model representing the pollution background in a pigpen was constructed in order to study the toxicology of pig respiratory air pollutants. Temperature, relative humidity, air-flow rate, total dust, total viable particles, endotoxins in respirable dust (< 5 microns) and ammonia were measured in a 1.9 m3 environmental chamber designed for piglets. The activity of 1 piglet was recorded on video. Temperature and relative humidity were respectively 23.9 +/- 1.3 degrees C and 70.5 +/- 8.3% (mean +/- SD). Air flow rate was 10 m3/h. Dust, viable particles, endotoxin and ammonia concentrations were respectively 7 +/- 2 particles/ml, 3.4 x 10(4) +/- 2.9 x 10(4) BCFP (bacterial colony-forming particles)/m3, 4.8 +/- 1.5 ng/m3 and 6 +/- 0.8 ppm (mean +/- SD). All these parameters were comparable to the lowest values recorded in pigpens.
为研究猪呼吸道空气污染物的毒理学，构建了一个代表猪舍污染背景的实验模型。在一个为仔猪设计的1.9立方米环境舱内，测量了温度、相对湿度、气流速度、总粉尘、总活菌颗粒、可吸入粉尘（<5微米）中的内毒素和氨气。用视频记录了1头仔猪的活动情况。温度和相对湿度分别为23.9±1.3摄氏度和70.5±8.3%（平均值±标准差）。气流速度为10立方米/小时。粉尘、活菌颗粒、内毒素和氨气浓度分别为7±2颗粒/毫升、3.4×10⁴±2.9×10⁴CFU（菌落形成单位）/立方米、4.8±1.5纳克/立方米和6±0.8 ppm（平均值±标准差）。所有这些参数都与猪舍中记录的最低值相当。
