Presence of pesticide residues on produce cultivated in Suriname.

Agricultural pesticides are widely used in Suriname, an upper middle-income Caribbean country located in South America. Suriname imported 1.8 million kg of agricultural pesticides in 2015. So far, however, national monitoring of pesticides in crops is absent. Reports from the Netherlands on imported Surinamese produce from 2010 to 2015 consistently showed that samples exceeded plant-specific pesticide maximum residue limits (MRLs) of the European Union (EU). Consumption of produce containing unsafe levels of pesticide residues can cause neurological disorders, and particularly, pregnant women and children may be vulnerable. This pilot study assessed the presence of pesticide residues in commonly consumed produce items cultivated in Suriname. Thirty-two insecticides (organophosphates, organochlorines, carbamates, and pyrethroids) and 12 fungicides were evaluated for their levels in nine types of produce. Pesticide residue levels exceeding MRLs in this study regarded cypermethrin (0.32 µg/g) in tomatoes (USA MRL 0.20 µg/g), lambda-cyhalothrin (1.08 µg/g) in Chinese cabbage (USA MRL 0.40 µg/g), endosulfan (0.07 µg/g) in tannia (EU MRL 0.05 µg/g), and lindane (0.02 and 0.03 µg/g, respectively) in tannia (EU MRL 0.01 µg/g). While only a few pesticide residues were detected in this small pilot study, these residues included two widely banned pesticides (endosulfan and lindane). There is a need to address environmental policy gaps. A more comprehensive sampling and analysis of produce from Suriname is warranted to better understand the scope of the problem. Preliminary assessments, using intake rate, hazard quotient, and level of concern showed that it is unlikely that daily consumption of tannia leads to adverse health effects.

An evaluation of pesticide residue levels in selected produce and a medical plant in Suriname

OBJECTIVE: This specific study objective was to characterize pesticide contamination in produce and medicinal plants in Suriname. DESIGN AND METHODS: Samples were collected during different seasons from several markets in Suriname. The preliminary assessment collected 8 products from the largest market in Paramaribo during the rainy season. Results from the preliminary assessment informed the selection of products for the expanded assessment, which was focused on 7 products sampled from the same market, as well as the largest market in district Wanica during the dry season. Additionally, the vegetable Tannia was sampled at 3 other markets within Paramaribo. All samples were analyzed for pesticide residue with Gas Chromatography Electron Capture Detector. RESULTS: The preliminary assessment conveyed that 12.5% of the samples tested had pesticide residues. The expanded characterization showed that 35.3% of the samples tested positive for pesticide residues. Half of all the samples with pesticide residues exceeded either 1 or more Maximum Residual Levels (MRL) in the expanded assessment. Among the identified residues were Endosulfan and Lindane, which are banned for use in Suriname and are globally being phased out under the Stockholm Convention. CONCLUSIONS: A percentage of selected produce items cultivated in Suriname were contaminated with pesticides. To ascertain the association with adverse health effects, this research will be followed up by a human health assessment that includes a dietary assessment and biomarker testing.

Mobile health technology-enabled community health workers as pesticide interventionists in rural Suriname

OBJECTIVE: To bolster access for vulnerable communities to urgent pesticide-related health information and services using a mobile health technology-enabled community health worker (CHW) strategy. DESIGN AND METHODS: The project was designed to demonstrate the effectiveness of mobile health technology–enabled CHWs in promoting safe pesticide use in pesticide-induced suicide-prone communities in Suriname. The team focused on three interconnected components: message mapping, validation, and delivery testing. The text messages were tested to assess content, literacy, and the ability to solicit a recipient response to determine the effectiveness of mobile technology as a health intervention tool. RESULTS: Thirty-nine text messages addressed the following key themes: pesticide miss/overuse, pesticide accessibility contributing to its use as an attempted or successful suicide strategy, and pesticide handling and disposal. For each of these themes, at least three messages were developed. Most text messages emphasized safe pesticide handling as the root cause of both misuse and access. (The pesticide awareness and education campaign will be expanded country-wide.) CONCLUSION: The mobile health technology- enabled CHWs functioning as pesticide interventionists demonstrated that bidirectional text messaging was a promising awareness and education intervention strategy. Focusing on safe handling was a reasonable target for intervention in the absence of a comprehensive national pesticide policy governing import, distribution, access, handling, and disposal. Of note is that none of the messages to date directly focused on suicide, confirming the strategy to address suicide prevention as a holistic public health issue under a safe pesticide use “umbrella” rather than as an isolated, stigma-provoking problem.