Community duplicate diet methodology: A new tool for estimating dietary exposures to pesticides

Abstract

An observational field study was conducted to assess the feasibility of a community duplicate diet collection method; a dietary monitoring tool that is population-based. The purpose was to establish an alternative procedure to duplicate diet sampling that would be more efficient for a large, defined population, e.g., in the National Children's Study (NCS). Questionnaire data and food samples were collected in a residence so as not to lose the important component of storage, preparation, and handling in a contaminated microenvironment. The participants included nine Hispanic women of child bearing age living in Apopka, FL, USA. Foods highly consumed by Hispanic women were identified based on national food frequency questionnaires and prioritized by permethrin residue concentrations as measured for the Pesticide Data Program. Participants filled out questionnaires to determine if highly consumed foods were commonly eaten by them and to assess the collection protocol for the food samples. Measureable levels of permethrin were found in 54% of the samples. Questionnaire responses indicated that the collection of the community duplicate diet was feasible for a defined population.

Pyrethroid insecticides and their environmental degradates in repeated duplicate-diet solid food samples of 50 adults

“… 4 , 5 , 27 Few data exist on the temporal levels of current-use pyrethroid insecticides in the everyday diets of adults. 10 , 12 Our study results showed that the individual target pyrethroids were not detected often (1–21%) in the duplicate-diet solid food samples of 50 Ex-R adults over the 6-week monitoring period. However on a cumulative basis, 49% of the participants’ food samples contained at least one of the target pyrethroids.…”

Measured versus simulated dietary pesticide intakes in children

“…We know from PDP, the Total Diet Study (US Food and Drug Administration (USFDA) 2006) and other studies (Fenske et al 2002;Melnyk et al 2012) that OP and pyrethroid pesticides can be detected in many different types of foods eaten by US children, including grains/baked goods, dairy products, nuts/nut butters, meat and fish. For example, PDP detected several OPs (chlorpyrifos-methyl, malathion) in more than 15% of wheat and wheat flour samples during 2003-2005, while the Total Diet Study measured them in 100% of whole wheat bread and the majority of white bread and roll samples collected in 1991-2004.…”

Testing a cumulative and aggregate exposure model using biomonitoring studies and dietary records for Italian vineyard spray operators

“…As an example of occupational exposures, Ueyama et al (2012) reported that urinary DAP levels for a range of workers in Japan, including pesticide applicators, were similar to those reported previously. Exposure to pesticides as part of a total diet study has been performed by analysing community food samples (Gimou et al, 2008;Nougadère et al, 2012) and from duplicate diet samples (Melnyk et al, 1997(Melnyk et al, , 2012(Melnyk et al, , 2014.…”