
Working in pest control can be a hazardous job, exposing workers to a range of toxic chemicals that can have serious health consequences.
Pesticide exposure can occur through skin contact, inhalation, or ingestion, and it's estimated that over 100,000 workers in the United States are exposed to pesticides on the job each year.
Many of these chemicals are classified as carcinogens, meaning they have the potential to cause cancer.
Exposure to pesticides has been linked to a range of health problems, including neurological damage, reproductive issues, and birth defects.
Workers in the pest control industry are often at risk of pesticide exposure, particularly those who apply pesticides directly to homes and buildings.
The use of personal protective equipment (PPE) is crucial in reducing pesticide exposure, but it's not always effective if not used correctly.
According to the article, workers who use pesticides are 3 times more likely to develop Parkinson's disease than those who don't.
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Exposures
Occupational exposure to pesticides is a significant concern, especially for those working directly with them. It's estimated that about 10% of total pesticide exposure occurs via the respiratory route, with the rest through either dermal absorption or digestion.
Respiratory inhalation is a primary route of exposure, often occurring when applying highly volatile pesticide products without proper respiratory protective equipment. In agricultural occupations, this can happen in poorly ventilated working environments.
Dermal absorption is another significant route of exposure, particularly through direct skin contact with pesticides or contaminated clothing and tools. A study of Greek tobacco-growing farmers found that dermal exposure was the major route of exposure (58%) during occupational pesticide use.
The physiochemical properties of the pesticide, such as lipid solubility, can affect the rate and extent of absorption. For example, organophosphate and carbamate insecticides are efficiently absorbed by the skin due to their high lipid solubility.
Factors associated with pesticide exposures include temperature, humidity, weather conditions, personal hygiene, and the use of personal protective equipment. Proper hand washing and using PPE can help minimize exposure.
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Here are some key factors associated with pesticide exposures:
Overall, understanding the routes and factors associated with pesticide exposures is crucial for minimizing risk and protecting yourself and others.
Health Effects
Working with pest control can expose you to a wide range of health risks. Around 300,000 deaths per year are resulted from acute pesticide poisoning, with organophosphates, organochlorines and aluminium phosphide being reported most frequently as the cause.
The incidence rate of acute occupational pesticide-related illness is 1.17 per 100,000 full time equivalent workers (FTEs), with insecticides responsible for 49% of all illnesses. This rate is much higher among agricultural occupations, where pesticides are extensively and intensively used, at 18.2/100,000 FTEs.
Pesticide exposures have been linked to various respiratory problems, including asthma, chronic obstructive pulmonary disease, and lung cancer. In fact, a study found that occupational exposure to insecticides was associated with an increased risk of sarcoidosis.
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Cancer
Cancer is a serious health concern that has been extensively studied in relation to human pesticide exposure. The International Community for Research on Cancer (IARC) has been investigating this correlation for decades.
Pesticide exposure has been linked to the development of cancer, and the IARC has been a key player in uncovering this truth.
Respiratory Conditions
A staggering 300,000 deaths per year are attributed to acute pesticide poisoning globally.
Pesticide exposure can cause a range of respiratory problems, including asthma, both new incidence and exacerbation of preexisting disease.
Insecticides are responsible for 49% of all pesticide-related illnesses, with a higher incidence rate among agricultural occupations.
The incidence rate of acute occupational pesticide-related illness is 1.17 per 100,000 full-time equivalent workers.
Agricultural occupations experience a much higher incidence rate of pesticide-related illness compared to non-agricultural occupations, at 18.2/100,000 FTEs versus 0.53/100,000 FTEs.
Occupational exposure to insecticides has been linked to an increased risk of sarcoidosis.
Exposure to herbicides, insecticides, and fungicides has been associated with current rhinitis.
Paraquat and other bipyridyl herbicides have been shown to increase the risk of developing allergic rhinitis among grape farmers.
Pesticide poisoning has been significantly associated with a number of respiratory problems, including cough, allergy, wheeze, and organic dust toxic syndrome (ODTS) among non-smokers.
National Poison Data System
The National Poison Data System (NPDS) plays a crucial role in tracking acute pesticide poisonings. We use NPDS data to monitor work-related pesticide-related illnesses and injuries.
The NPDS is a valuable resource for surveillance of acute pesticide illness and injury. Besides the SENSOR-Pesticides Program data, we also use NPDS data for this purpose.
We track acute work-related pesticide poisonings using NPDS data. This is one of 25 Occupational Health Indicators tracked by the Council of State and Territorial Epidemiologists (CSTE).
Here are the two data sources we use to monitor work-related pesticide-related illnesses and injuries:
- SENSOR-Pesticides program data
- National Poison Data System (NPDS) data
Prevention and Safety
The SENSOR-Pesticides Program is recognized nationally for providing critical information for occupational and public health.
Reducing unnecessary pesticide applications is a key part of Integrated Pest Management (IPM) strategy. This approach selects pesticides based on least negative effects on the environment and human health.
Wearing personal protection equipment and using alternative pesticides with lower volatility and concentrations of active ingredients can significantly reduce occupational pesticide exposures, especially those related to respiratory outcomes.
Governmental actions through regulations and policies are also effective in reducing pesticide exposures, as seen in IPM approaches.
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Sensor Impact

The SENSOR-Pesticides Program has made a significant impact on occupational and public health.
The program is recognized nationally for providing critical information that helps prevent pesticide-related illnesses and injuries.
By supporting state health departments with cooperative agreement funds from NIOSH and the EPA, the program enables them to conduct surveillance and gather valuable data.
This data is essential for identifying trends and patterns, allowing for targeted prevention efforts and improved safety measures.
The program's success is a testament to the power of collaboration and information-sharing in promoting public health.
Enforcing Safety in Workplace
Around 300,000 deaths per year are resulted from acute pesticide poisoning globally.
The incidence rate of acute occupational pesticide-related illness was 1.17 per 100,000 full time equivalent workers.
Agricultural occupations have a much higher incidence rate of pesticide-related illness, at 18.2/100,000 FTEs, compared to non-agricultural occupations, which is 0.53/100,000 FTEs.
The US Department of Agriculture emphasizes that pesticides should be applied as a last resort in Integrated Pest Management (IPM) programs.
Using alternative pesticides with lower volatility and lower concentrations of active ingredients can significantly reduce occupational pesticide exposures.
Educating farmers about Integrated Pest Management (IPM) has been shown to significantly reduce the use of pesticides, particularly organophosphate insecticides.
The SENSOR-Pesticides Program is recognized nationally for providing critical information for occupational and public health.
In 2016, the EPA revised regulations for pesticide applicator certification and training to ensure the competent use of "restricted use" pesticides.
Regulations and Labels
In 2015, the EPA revised the Worker Protection Standard (WPS) to reduce pesticide exposures among agricultural workers, citing SENSOR-Pesticides findings extensively in the revised rules.
The SENSOR-Pesticides project led to label changes on countless pesticide products to improve clarity and safety.
State laws in California, Florida, and North Carolina were also influenced to provide greater protection from pesticide hazards.
The EPA's revised WPS was the first major revision in 20 years.
Studies and Research
The Centers for Disease Control and Prevention (CDC) publishes a weekly scientific publication called MMWR, which contains data and reports on specific health and safety topics, including pesticide-related articles.
You can view selected pesticide-related MMWR articles in NIOSHTIC-2, a database that provides access to a wide range of information on pesticides.
To find more in-depth research, you can also view the NIOSHTIC-2 database full search results on pesticides, which will give you a comprehensive overview of the topic.
Here are some resources to explore:
- View selected peer-reviewed, pesticide-related articles in NIOSHTIC-2.
- View the NIOSHTIC-2 database full search results on pesticides.
Job-Exposure Matrices and Quantitative Algorithms
Job-exposure matrices are a crucial tool in occupational epidemiology, used to assess the risk of disease associated with various occupations. They are essentially a table that categorizes jobs based on their potential health hazards.
By categorizing jobs in this way, researchers can identify patterns and trends in disease incidence. For example, studies have shown that certain jobs, such as those in the manufacturing sector, are associated with an increased risk of respiratory disease.
Quantitative algorithms, on the other hand, are mathematical models used to analyze and interpret large datasets. They can help researchers identify specific risk factors and estimate the magnitude of their impact. In the context of job-exposure matrices, quantitative algorithms can be used to refine the categorization of jobs based on their potential health hazards.
Researchers have used these algorithms to identify specific chemicals and substances that are associated with an increased risk of disease. For instance, a study found that exposure to certain pesticides was linked to an increased risk of cancer.
Data Sources
We use two main data sources to monitor work-related pesticide-related illnesses and injuries. These sources provide us with valuable information to help prevent and mitigate these issues.
The first data source is the Sentinel Event Notification System for Occupational Risk-Pesticides (SENSOR-Pesticides) program data. This program is built on cooperative agreement funds from NIOSH and the US Environmental Protection Agency (EPA) to support surveillance of acute occupational pesticide-related illness and injury.
We also use the National Poison Data System (NPDS) data for acute pesticide illness and injury surveillance. This data helps us to identify trends and patterns in pesticide-related illnesses and injuries.
Here are the two data sources we use:
- Sentinel Event Notification System for Occupational Risk-Pesticides (SENSOR-Pesticides) program data
- National Poison Data System (NPDS) data
Data Usage
We use data from the SENSOR-Pesticides program to track acute occupational pesticide-related illness and injury.
The SENSOR Program receives cooperative agreement funds from NIOSH and the US Environmental Protection Agency (EPA) for this purpose.
Health departments use these funds to conduct surveillance on acute occupational pesticide-related illness and injury.
We also use NPDS data to track acute work-related pesticide poisonings, which is one of 25 Occupational Health Indicators tracked by the Council of State and Territorial Epidemiologists (CSTE).
Other Issues in Association Studies

In association studies, researchers often face issues related to multiple testing, which can lead to false positives. This can occur when a large number of tests are conducted, increasing the likelihood of obtaining statistically significant results by chance.
A common approach to mitigate this issue is to use a Bonferroni correction, which adjusts the significance threshold to account for the number of tests performed.
However, this method can be overly conservative, leading to a loss of power and potentially missing true associations.
Researchers should carefully consider the trade-offs between Type I and Type II errors when deciding whether to apply a correction.
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Journal Articles
If you're interested in exploring the latest research on pesticides, there are several resources available. The CDC's MMWR publication contains data and reports on specific health and safety topics, including pesticide-related articles that can be viewed in NIOSHTIC-2.
For a more in-depth look, you can also view selected peer-reviewed, pesticide-related articles in NIOSHTIC-2. These articles provide valuable insights into the effects of pesticides on human health and the environment.
To access the full database of pesticide-related articles, simply visit the NIOSHTIC-2 website and conduct a full search. This will give you a comprehensive overview of the latest research in the field.
Here are some ways to access pesticide-related research:
- View selected MMWR pesticide-related articles in NIOSHTIC-2.
- View selected peer-reviewed, pesticide-related articles in NIOSHTIC-2.
- View the NIOSHTIC-2 database full search results on pesticides.
Table 1
Pesticides are used in various settings to prevent and control pests and diseases. They can be grouped into different categories based on their target, such as herbicides, insecticides, fungicides, bactericides, and rodenticides.
Herbicides are used to kill weeds and other unwanted plants. Some common herbicides include chlorophenoxyl (2,4-D, 2,4,5-T and MCPA), urea derivatives, triazines (atrazine), amide (propanil), bipyridils (paraquat and diquat), and glyphosate.
Insecticides are used to kill insects and other invertebrates. They can be further grouped into organochlorines, organophosphates, carbamates, pyrethroids, and other substances. Some common insecticides include dichlorodiphenylethanes (DDT, DDD, dicofol), chlorinated cyclohexanes and benzenes (lindane, HCB), cyclodienes (aldrin, endosulfan, chlordane and toxaphene) and chlordecone (mirex), and Bacillus thuringiensis (protein product).
Fungicides are used to kill fungi and other microorganisms. Some common fungicides include dithiocarbamate, captan, captofol, pentachlorophenol, iprodione, and sulphur.
Bactericides are used to kill bacteria and other microorganisms. Some common bactericides include triazine-S-triones, chlorine-releasing agents, chlorine, and dichloronitrobenzene.
Rodenticides are used to kill rodents and other small mammals. Some common rodenticides include coumadin and derivatives, anticoagulants, strychnine, and sodium fluoroacetate.
Fumigants are used to kill pests and microorganisms by releasing toxic gases. Some common fumigants include methyl bromide, aluminum/zinc phosphide, and sulfur.
9. Conclusions
Pesticide exposure from working in pest control can have serious consequences for your respiratory health.
Respiratory symptoms such as wheezing, airway irritation, dry/sore throat, cough, breathlessness, and chest tightness have been associated with occupational pesticide exposures.
Impaired lung function is often observed among people occupationally exposed to pesticides.
There's little evidence suggesting that occupational pesticide exposure is associated with respiratory tract infection.
However, studies have shown an association between organochlorine insecticide exposures and respiratory tract infection in young children.

Inconclusive results have been reported from studies of the association between occupational pesticide exposures and lung cancer.
To prevent respiratory symptoms and diseases related to occupational pesticide exposures, effective approaches include pesticide management and regulations, educational programs on safety precautions, and reinforcement of safety behaviors.
Proper use of personal protection equipment (PPE) is especially important in the workplace.
Studies have shown that using biological measures of pesticide exposure in urine or blood samples can provide more accurate results than questionnaire-based approaches or job title alone.
Most studies have taken place in more developed parts of the world, leaving many large areas unstudied, particularly in developing countries like India, Sri Lanka, and Ethiopia.
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