Pesticide exposure among Latinx child farmworkers in North Carolina

Organophosphorus pesticide exposure from house dust and parent-reported child behavior in Latino children from an orchard community

BACKGROUND

Organophosphorus pesticide (OP) exposure is known to have adverse effects on the nervous system. Children from agricultural communities are at risk of exposure to these chemicals from their indoor environments that can lead to neurological and developmental problems, including changes in behavior.

OBJECTIVE

The aim of this study is to evaluate whether the take-home pathway exposure is associated with behavioral and emotional problems in Latino Orchid Community children.

METHOD

The study was implemented over a period of two years (2008-2010) in an orchard farming community with a total of 324 parents who had children between the ages of 5-12 years old. Mothers of the children were asked to complete the Child Behavior Checklist (CBCL) and dust from their carpets was collected. Emotional and behavioral deficits were assessed based on the CBCL and house dust was assessed for OP concentrations. In this study, correlations between OPs in house dust and CBCL subscales were estimated using linear regression models with total OP concentrations classified by tertiles. This study also facilitated the comparison between the agricultural and non-agricultural families in terms of behavioral deficits and house dust concentrations of pesticides.

RESULTS

The data from the study shows that there was a positive association between the concentration of OP residues in house dust and internalizing behavior (β=2.06, p=0.05) whereas the association with externalizing behavior was not significant after accounting for sociocultural covariates. Significant positive associations of OP residues with somatic problems (p=0.02) and thought problems (p=0.05) were also found.

CONCLUSION

The data support a potential role of OP exposure in childhood development, with a specific focus on internalizing behavior. Future work focused on longitudinal studies may uncover the long-term consequences of OP exposure and behavior.

Understanding Latinx Child Farmworkers' Reasons for Working: A Mixed Methods Approach

Agricultural labor is extremely hazardous, yet young children are legally permitted to work on farms. This paper contextualizes and describes Latinx hired child farmworkers’ stated reasons for working. We conducted a mixed-methods study using in-depth interviews ( n = 30) and survey interviews ( n = 202) with Latinx child farmworkers aged 10 to 17 in North Carolina. Our qualitative thematic analysis identified children’s salient reasons for working, including supporting family, contextual factors that lead to farm work, and occupying summer time. Statistical analysis showed that children’s primary reasons for working included buying clothes (91.1%) and school supplies (64.7%), with few differences by gender, age, or other characteristics. The findings demonstrate that most Latinx children view farm work as a necessary but temporary experience that financially supports their families. We discuss the implications for protecting Latinx child workers by reducing their structural vulnerability in order to facilitate healthy development.

Latino Migrant Farmworker Youths' Perceptions of Access to Care in the Southeast: A Qualitative Approach

This study explored Latino Migrant Farmworker (LMFW) youths' perceptions regarding access to health care in the United States (U.S.). Twenty semi-structured audio-voice recorded interviews were conducted with LMFW youths (aged 15-20 years old) in Georgia and Florida. Thematic analysis was used to explore whether, and how, LMFW youths would seek health care in the U.S. as well as their personal views toward health care. Five distinct perceptions regarding accessing health care were delineated: (1) cultural-related views and attitudes toward health care, (2) transportation dependency, (3) English language as a barrier for communication, (4) lack of knowledge of available resources, and (5) embracing the obligation, and the necessity, of work. Some of LMFW youths' perceptions of seeking access to health care in the U.S. point to barriers related to social determinants of health. These barriers suggest the need for significant reform within the U.S. health care system to include farmworker youths' health needs and to promote cultural responsiveness among clinicians and rural health providers to better serve this vulnerable population.

Pesticides at brain borders: Impact on the blood-brain barrier, neuroinflammation, and neurological risk trajectories

Pesticides are omnipresent, and they pose significant environmental and health risks. Translational studies indicate that acute exposure to high pesticide levels is detrimental, and prolonged contact with low concentrations of pesticides, as single and cocktail, could represent a risk factor for multi-organ pathophysiology, including the brain. Within this research template, we focus on pesticides' impact on the blood-brain barrier (BBB) and neuroinflammation, physical and immunological borders for the homeostatic control of the central nervous system (CNS) neuronal networks. We examine the evidence supporting a link between pre- and postnatal pesticide exposure, neuroinflammatory responses, and time-depend vulnerability footprints in the brain. Because of the pathological influence of BBB damage and inflammation on neuronal transmission from early development, varying exposures to pesticides could represent a danger, perhaps accelerating adverse neurological trajectories during aging. Refining our understanding of how pesticides influence brain barriers and borders could enable the implementation of pesticide-specific regulatory measures directly relevant to environmental neuroethics, the exposome, and one-health frameworks.

Pesticide Exposure among Latinx Children in Rural Farmworker and Urban Non-Farmworker Communities: Associations with Locality and Season

This study uses repeated measures to document the pesticide exposure of rural and urban Latinx children (age eight at baseline), and to compare these children in terms of the frequency and concentration of their exposure to a large set of pesticides, accounting for season. We used silicone wristbands worn for one week up to ten times at quarterly intervals from 2018 to 2022 to assess pesticide exposure in children from rural farmworker (n = 75) and urban non-farmworker (n = 61) families. We determined the detection and concentrations (ng/g) of 72 pesticides and pesticide degradation products in the wristbands using gas chromatography electron capture detection and gas chromatography mass spectrometry. The most frequently detected pesticide classes were organochlorines, pyrethroids, and organophosphates. Controlling for season, organochlorine or phenylpyrazole detections were less likely for rural children than for urban children. Detections of organochlorines, pyrethroids, or organophosphates were lower in spring and summer versus winter. Controlling for season, urban children had greater concentrations of organochlorines, while rural children had greater concentrations of pyrethroids and Chlorpyrifos. Pesticide concentrations were lower in winter and spring compared with summer and fall. These results further document that pesticides are ubiquitous in the living environment for children in vulnerable, immigrant communities.