Publications by authors named "Amlan Aggrawal"
California Leafy Green Products Handler Marketing Agreement (LGMA) established food safety metrics with guidance recommendations of 366 m (1,200 feet) and 1,609 m (1 mile) distances between production fields of leafy greens and a concentrated animal feeding operation (CAFO) containing >1,000 and >80,000 head of cattle, respectively. This study evaluated the effect of these distance metrics and environmental factors on the occurrence of airborneEscherichia coliin proximity to seven commercial beef cattle feedlots located in Imperial Valley, California. A total of 168 air samples were collected from seven beef cattle feedlots during March and April 2020, which were the months implicated in the 2018 Yuma Arizona lettuce outbreak of E.
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- The study examined how distance from beef cattle feedlots and various environmental factors affect airborne bacteria.
- Over 6 months, 300 air samples were collected and analyzed for pathogens, but none were confirmed, although 16.7% of samples had detectable indicators.
- The findings suggest that being close to feedlots does increase the likelihood of airborne bacteria, but the absence of confirmed pathogens implies that this may not significantly contribute to contamination of leafy greens.