Pesticide Poisoning and the Use of Personal Protective Equipment (PPE) in Indonesian Farmers

Chronic exposures to cholinesterase-inhibiting pesticides adversely affects the health of agricultural workers in India

Biomonitoring of pesticide exposure has become a public concern because of its potential health effects. The present study investigated the acetylcholinesterase (AChE) inhibitory levels and their associated health effects in agricultural areas in Telangana, India. This cross-sectional included 341 exposed participants and 152 control participants from agricultural areas. A structured questionnaire was completed and blood and urine samples were collected to measure pesticides, dialkyle phosphate (DAP) metabolites, and AChE activity using liquid chromatography-tandem mass spectrometry and reversed-phase high-performance liquid chromatography. twenty-eight pesticides were detected in blood samples at concentrations ranging 0.42-45.77 ng/mL. Six DAP metabolites were also measured in urine, and all DAP metabolites were significantly higher in the exposed group. AChE activity is significantly reduced in individuals exposed for >10 years, raising concerns regarding possible neurological disorders. These results emphasise the urgent need to investigate the health effects of pesticides exposure, especially in agriculture.

Environmental pollution and extreme weather conditions: insights into the effect on mental health

Environmental pollution exposures, including air, soil, water, light, and noise pollution, are critical issues that may implicate adverse mental health outcomes. Extreme weather conditions, such as hurricanes, floods, wildfires, and droughts, may also cause long-term severe concerns. However, the knowledge about possible psychiatric disorders associated with these exposures is currently not well disseminated. In this review, we aim to summarize the current knowledge on the impact of environmental pollution and extreme weather conditions on mental health, focusing on anxiety spectrum disorders, autism spectrum disorders, schizophrenia, and depression. In air pollution studies, increased concentrations of PM2.5, NO2, and SO2 were the most strongly associated with the exacerbation of anxiety, schizophrenia, and depression symptoms. We provide an overview of the suggested underlying pathomechanisms involved. We highlight that the pathogenesis of environmental pollution-related diseases is multifactorial, including increased oxidative stress, systematic inflammation, disruption of the blood-brain barrier, and epigenetic dysregulation. Light pollution and noise pollution were correlated with an increased risk of neurodegenerative disorders, particularly Alzheimer's disease. Moreover, the impact of soil and water pollution is discussed. Such compounds as crude oil, heavy metals, natural gas, agro-chemicals (pesticides, herbicides, and fertilizers), polycyclic or polynuclear aromatic hydrocarbons (PAH), solvents, lead (Pb), and asbestos were associated with detrimental impact on mental health. Extreme weather conditions were linked to depression and anxiety spectrum disorders, namely PTSD. Several policy recommendations and awareness campaigns should be implemented, advocating for the advancement of high-quality urbanization, the mitigation of environmental pollution, and, consequently, the enhancement of residents' mental health.

Risk perception and use of personal protective equipment (PPE) in pesticide use: does risk shape farmers' safety behavior?

Risk perception and use of personal protective equipment (PPE) in pesticide use were studied in 109 farmers of northern Greece. Farmers differed in the levels of pesticide risk perception, with 26.6% showing very low and low levels, 34.9% showing moderate levels, and 38.5% showing high and very high levels. Pesticide risk perception was positively correlated with education and large cultivated area, but negatively with age and non-farming as a main profession. Most farmers (82.6%) showed adequate use of PPE (mostly face mask and gloves). The use of PPE was positively correlated with education and risk perception, but negatively with age and non-farming as a main profession. Farmers with high levels of risk perception used 1.3 and 2.6 times more PPE items than those with moderate and low levels of risk perception, respectively. High education was a positive predictor, whereas main profession other than farming was a negative predictor of PPE use.

Physical function as a marker to assess the effects of occupational long-term pesticide exposure

In this cross-sectional study, we determined the relative impact of long-term occupational exposure to pesticides on physical performance and perception of tiredness. Experimental data was collected in locus from agricultural communities and included surveys to assess the duration of exposure to pesticides, social status, habitual physical activity levels, presence of common mental disorders (CMD), and self-reported tiredness. Plasmatic cholinesterase (PChE), body composition and traditional functional performance tests (Handgrip strength-HGS; Time up and go-TUG; and Sit-to-stand-STS) were obtained. From the 127 individuals tested, cluster analysis yielded 80 individuals divided in Direct Exposed (n = 37) and Indirect Exposed (n = 43); Tired (n = 16), and Not Tired (n = 64). PChE values were within the reference values (5209.64-13943.53 U/L). Pesticide exposure had no influence on PChE levels, CMD or fatigue (p > 0.05), while Self-reported tiredness had (p < 0.05). Principal Component Analyses showed that HGS; STS and TUG (i.e., physical performance variables) are negatively influenced by two independent factors: pesticide exposure and self-reported tiredness. We conclude that chronic pesticide exposure and tiredness can negatively impact physical performance, independently, without clinically significant changes in PChE levels that is a biomarker used to track pesticide intoxication. Functional physical tests can be a useful tool to identify chronic pesticide exposure, and help with the limitations of commonly used parameters (i.e. PChE and CMD). Self-reported tiredness is a confounding variable.

Health-Related Challenges and Programs Among Agriculture Workers: A Narrative Review

Agriculture is one of the most hazardous occupations, with many workers experiencing occupational accidents and ill health. The misuse of toxic substances, often due to inadequate protective measures, raises concerns about both individual and nature safety. However, the strenuous tasks done by the agricultural workers, especially those related to pesticide exposure and some challenges affect the farmer's health and well-being. This review paper used databases like PubMed and Google Scholar to elaborate this. English language studies are included and other languages are excluded. The health system for agricultural labour in India sheds light on the neglected status of agricultural workers and emphasizes the need for health promotion programs. For that, training and interventions are important as crucial elements in reducing pesticide exposure, with a call for the enforcement of existing laws and regulations. Agriculture workers have a proper knowledge and attitude towards the safety and program to overcome the health-related conditions they face. This paper also addresses the practices of personal protective equipment (PPE) and the challenges faced by farmers in adopting adequate safety measures.

Safety behavior in pesticide use among farmers of northern Greece: the role of information sources

BACKGROUND

Farmers' compliance with common safety practices in pesticide use (i.e., keeping records of pesticide applications, reading the information of pesticide labels, and taking protective measures during pesticide handling) and the use of information sources about pesticides were studied in a simple random sample of farmers in Evros Province, northern Greece.

RESULTS

According to the three common safety practices considered in the study, most farmers (56.9%) complied with safety practices. Nevertheless, a noticeable proportion of the farmers never kept records of pesticide applications (33.9%), never read the information of pesticide labels (20.2%), and never took protective measures during pesticide handling (24.8%). Farmers reported using up to six different sources of information about pesticides, but the majority (51.4%) reported using up to one source and almost one-third (33.9%) relied on own sources. The most common information source about pesticides was the staff of the agricultural supply stores, used by 88.1% of the farmers. Safety behavior was positively correlated with total sources of information (P < 0.01) and information by the agricultural supply stores (P < 0.01). Multiple regression analysis showed that safety behavior was reduced in females, whereas it was increased in farmers with high education, high number of plots, and high level of information sources.

CONCLUSION

Despite good levels of safety behavior by most farmers, keeping records of sprayings should be improved. Using multiple information sources about pesticides is crucial to improve safety behavior of farmers. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Pesticide Use and Health Effects among Nepalese Farmers: A Cross-Sectional Study in Tokha Municipality

Background

Pesticides are essential for agricultural development, but their increased use in developing countries like Nepal poses health risks to farmers.

Methods

A cross-sectional study was conducted in wards 1, 2, and 3 of the Tokha Municipality in Kathmandu District to identify the health effects of pesticides and associated factors among farmers. The study included 333 respondents who were interviewed between April 26 and June 04, 2022.

Results

The majority of farmers (36.6%) were aged between 40 and 49 years, with a median (IQR) age of 45.0 (38.0 to 51.0) years. All farmers reported using pesticides, with 100% usage in vegetables. Most respondents (73%) reported experiencing health effects: headache (69.5%), skin irritation (42.8%), and burning eyes (31.3%) were the most common symptoms. Only 8% sought medical care. Additionally, 94.6% of respondents had not received training on integrated pest management, and none of them reported using a complete set of personal protective equipment. The study found that older age groups, females, those who were unable to read and write, and those of the Hindu religion, as well as respondents with longer pesticide use, more frequent spraying, and not detecting wind direction, had significantly higher odds of self-reported health problems (P < 0.05).

Conclusion

Our findings show that all farmers in the study were using pesticides, and the majority had reported health effects. Therefore, we recommend that farmers receive training on integrated pest management, use a complete set of personal protective equipment, and promptly seek medical care if they experience health issues.

Engineering of a phosphotriesterase with improved stability and enhanced activity for detoxification of the pesticide metabolite malaoxon

Organophosphorus (OP) pesticides are still widely applied but pose a severe toxicological threat if misused. For in vivo detoxification, the application of hydrolytic enzymes potentially offers a promising treatment. A well-studied example is the phosphotriesterase of Brevundimonas diminuta (BdPTE). Whereas wild-type BdPTE can hydrolyse pesticides like paraoxon, chlorpyrifos-oxon and mevinphos with high catalytic efficiencies, kcat/KM >2 × 107 M-1 min-1, degradation of malaoxon is unsatisfactory (kcat/KM ≈ 1 × 104 M-1 min-1). Here, we report the rational engineering of BdPTE mutants with improved properties and their efficient production in Escherichia coli. As result, the mutant BdPTE(VRNVVLARY) exhibits 37-fold faster malaoxon hydrolysis (kcat/KM = 4.6 × 105 M-1 min-1), together with enhanced expression yield, improved thermal stability and reduced susceptibility to oxidation. Therefore, this BdPTE mutant constitutes a powerful candidate to develop a biocatalytic antidote for the detoxification of this common pesticide metabolite as well as related OP compounds.

The Risk Factors and Pesticide Poisoning among Horticultural Farmers: A Pilot Study in Indonesia

BACKGROUND: Pesticide usage has become more common, resulting in negative consequences for the environment and human health. Pesticide poisoning data are still difficult to come by in Indonesia. This is due to a poor health reporting system, and attention to the health state of farmers has gone unnoticed as well. AIM: The aim of the study was to determine the risk factors and pesticide poisoning among horticultural farmers. METHODS: A cross-sectional study among horticultural farmers in Sumber Rejo and Gisting Districts, Tanggamus Regency, Lampung, Indonesia. Data were collected from May to June 2021. The inclusion criteria were farmers who used organophosphate and carbamate pesticides, farmers who were still actively working using pesticides, and farmers who sprayed 1−7 days before taking blood. Data collection was carried out using questionnaires and taking respondent’s blood to determine pesticide poisoning. Sampling of horticultural farmers is done by means of multistage random sampling. Bivariate analysis was assessed using the Chi-square test and multivariate analysis was used logistic binary regression. Data analysis used SPSS software version 18.0. RESULTS: There were significant association between amount of pesticides, topography, Hb levels, knowledge, attitude, behavior, frequency of spraying, personal hygiene, and use of PPE for pesticide poisoning among horticultural farmers (p < 0.05). The usage of inadequate PPE as a dominant factor for pesticide poisoning among horticultural farmers was confirmed by multivariate analysis (OR = 27.448, 95% CI 7.352−10.474). CONCLUSION: Pesticide poisoning among horticulture farmers is primarily caused by the use of inadequate PPE. As a result, relevant stakeholders must educate farmers on the need of utilizing excellent and standard personal protective equipment (PPE).

Farmers' knowledge and practice regarding good agricultural practices (GAP) on safe pesticide usage in Indonesia

Synthetic pesticides are widely applied for pest and disease control in Indonesia. However, a lack of knowledge and use of Good Agricultural Practices (GAP) for safe pesticide usage among Indonesian farmers remains a problem. This study aims to investigate the gap between farmers' knowledge of GAP for safe pesticide usage and their application of it. This research was conducted in 2020 in five Indonesian provinces. Primary data collection was by means of a survey, in which 298 respondents answered structured questionnaires. The survey also identified the sources of the information recorded and the respondents’ experience of pesticide exposure. The analysis tools used were the Wilcoxon Signed Ranked Test and Importance-Performance Analysis (IPA). There were significant differences in the results of the first analysis. These results appear to confirm the results of further analysis using IPA, which show that a high level of knowledge does not mean that farmers will apply this knowledge in practice: this is particularly relevant to wearing gloves and masks, using tools to remove blockages, never clearing blocked nozzles by blowing into them, and disposing of empty containers properly. Nevertheless, in some cases high levels of knowledge do result in high levels of application. Cases of pesticide exposure affecting human health by causing symptoms such as dizziness, nausea, and vomiting confirm that GAP for pesticide usage are not being implemented properly by some farmers. It is therefore recommended that their knowledge should be enhanced through the series of technical training programs using participatory approaches, so that farmers accumulate knowledge which will drive them to adopt GAP for safe pesticide usage.

Farmers' health risk and the use of personal protective equipment (PPE) during pesticide application

Personal protective equipment (PPE) is always considered the last and sometimes the most important safety shield against pesticides' hazards health risks. The spread of pests and low-quality pesticides, especially in developing countries, has increased health hazard potential among farmers. The present study aimed to assess farmers' health risks when using PPE (composite index) by exploring its most important predictive factors. A sample of 370 farmers in Ardabil province, Iran, was selected based on the multistage sampling method. The results reveal that most farmers use three types of PPE when applying pesticides. Based on their perception of pesticides' health risk, the number of PPE used differs. The highest health hazard in using PPE and the minimum perception of health risks caused by pesticides among farmers are related to the pesticides Paraquat and Chlorpyrifos. Also, the most important predictive factors of the composite index were found to be farm size, pesticides' health risk perception, previous experiences with harmful effects of chemical pesticides on health (especially among large-scale farmers), training courses, and ability to afford PPE-related costs, respectively. Accordingly, farmers' safety and health programs in the region should focus on reducing or replacing the mentioned high-risk pesticides. Reducing government subsidies for high-risk pesticides, establishing government subsidies for farmers' PPE, providing extension training (especially for small-scale farmers), and receiving ongoing training feedback to improve farmers' health risk perception of pesticides and the need to use PPE will effectively reduce farmers' health risks.

Factors associated with respiratory symptoms among herbicide applicators and assistant applicators in maize field

A cross-sectional study was conducted with 3,291 maize farmers enrolled whose main roles were herbicide applicators and assistant applicators. This study aimed to compare the prevalence of respiratory symptoms and the use of personal protective equipment (PPE) between herbicide applicators and assistant applicators, and determine factors associated with respiratory symptoms. Our results suggest that wheeze and dyspnea were associated with the task on the farm (adj. OR = 10.33 for wheeze and 24.13 for dyspnea), amount of herbicide use (adj. OR = 1.95 for wheeze and 1.41 for dyspnea), frequency of herbicide use (adj. OR = 2.87 for wheeze and 4.08 for dyspnea), not always wearing a mask (adj. OR = 1.49 for wheeze and 3.17 for dyspnea), not always wearing gloves (adj. OR = 2.63 for wheeze and 2.44 for dyspnea), and not always wearing goggles (adj.OR = 2.01 for dyspnea) after adjusting for confounding factors.

Analyzing the use of pesticides on health complaints of farmers in Waihatu Village, Indonesia

OBJECTIVE

The study aimed to find the factors that contributed greatly to health complaints due to use of pesticides.

METHOD

The research using the cross-sectional research design. The sample was determined using a total sampling technique. Data analysis was performed by path analysis using Smart PLS.

RESULTS

The result of the study found that the use of pesticides affected the working time t-statistic 3.467. The use of pesticides affects health complaints t-statistic 2.586. Types of pesticides affect working time t-statistic 2. Improper timing of spraying and the frequency of spraying has a bigger impact on farmers' health complaints.

CONCLUSIONS

Spraying time has the greatest influence on health complaints. It is recommended that farmers reduce the frequency of spraying more than 2 times a day, spraying time in the morning, and pay attention to the wind direction to reduce exposure and health hazards due to pesticides.