3. Exposure assessment – examines the levels of pesticides in human diet, analyzing
frequency and timing of contact with or consumption of food products with
residues of pesticides. It estimates various factors such as age, gender, and
pre-existing health conditions.
4. Risk characterization – examines the nature and extent of human health risks
from exposure to pesticides. It indicates the overall degree of confidence in the
assessment and information about populations more likely to be susceptible to
pesticides.
The vast majority of pesticide residue risk assessments in food are based on the
toxicological evaluation of individual compounds, but assessments of cumulative
exposure to multiple residues have gained notoriety [5].
1 Human Exposure to Pyrethroids
Exposure to pyrethroids can be either occupational or nonoccupational and can
occur in several ways, such as inhalation and oral and dermal routes. The majority
of the population is not substantially exposed to pyrethroids via inhalation and
dermal routes, as the uptake is mostly caused by manipulation of household products
with pyrethroids in their formula. On the other hand, they are the major routes of
exposure for agriculturists working with pesticides. Oral exposure is the primary
contamination route in general population due to ingestion of food products
containing pyrethroid residues [1, 6].
Ingestion of food products of vegetal origin such as fruits and vegetables usually
causes more human health damage since their consumption is in a raw or a semiprocessed form. Conversely, cereals and animal products are heavily processed,
oftentimes through high-temperature and pasteurization processes, leading to degradation of pyrethroids [7].
Deterministic and probabilistic approaches are often employed to analyze data on
food consumption and to quantitatively assess exposure [8, 9]. The deterministic
model utilizes available data and does not require evaluation of uncertainty components, expressing results which can be easily elucidated. Based on results from
previous studies (REFs) performed in Spain in 2016, Quijano et al. [7] a meanestimated chronic cumulative risk assessment determined by multiplying the mean
pesticide concentration in a food product by the mean or the 95th percentile of the food
consumption, thus defining lower-bound and upper-bound scenarios, respectively.
The probabilistic approach quantifies variation and uncertainty, representing the
data as a distribution instead of fixed values, including variance parameters.
Parameters such as food consumption data, pesticide levels, body weight, and
susceptible population groups (infants, expecting and breastfeeding mothers, individuals with kidney or liver disorders) are used in the probabilistic approach for
higher accuracy. Monte Carlo simulation is the most commonly used approach to
estimate exposure, taking into account probability distributions. Risk assessment
requires an exact and systematic quantitative data analysis model, particularly
Risk Assessment of Human Exposure to Pyrethroids Through Food
247
frequency and timing of contact with or consumption of food products with
residues of pesticides. It estimates various factors such as age, gender, and
pre-existing health conditions.
4. Risk characterization – examines the nature and extent of human health risks
from exposure to pesticides. It indicates the overall degree of confidence in the
assessment and information about populations more likely to be susceptible to
pesticides.
The vast majority of pesticide residue risk assessments in food are based on the
toxicological evaluation of individual compounds, but assessments of cumulative
exposure to multiple residues have gained notoriety [5].
1 Human Exposure to Pyrethroids
Exposure to pyrethroids can be either occupational or nonoccupational and can
occur in several ways, such as inhalation and oral and dermal routes. The majority
of the population is not substantially exposed to pyrethroids via inhalation and
dermal routes, as the uptake is mostly caused by manipulation of household products
with pyrethroids in their formula. On the other hand, they are the major routes of
exposure for agriculturists working with pesticides. Oral exposure is the primary
contamination route in general population due to ingestion of food products
containing pyrethroid residues [1, 6].
Ingestion of food products of vegetal origin such as fruits and vegetables usually
causes more human health damage since their consumption is in a raw or a semiprocessed form. Conversely, cereals and animal products are heavily processed,
oftentimes through high-temperature and pasteurization processes, leading to degradation of pyrethroids [7].
Deterministic and probabilistic approaches are often employed to analyze data on
food consumption and to quantitatively assess exposure [8, 9]. The deterministic
model utilizes available data and does not require evaluation of uncertainty components, expressing results which can be easily elucidated. Based on results from
previous studies (REFs) performed in Spain in 2016, Quijano et al. [7] a meanestimated chronic cumulative risk assessment determined by multiplying the mean
pesticide concentration in a food product by the mean or the 95th percentile of the food
consumption, thus defining lower-bound and upper-bound scenarios, respectively.
The probabilistic approach quantifies variation and uncertainty, representing the
data as a distribution instead of fixed values, including variance parameters.
Parameters such as food consumption data, pesticide levels, body weight, and
susceptible population groups (infants, expecting and breastfeeding mothers, individuals with kidney or liver disorders) are used in the probabilistic approach for
higher accuracy. Monte Carlo simulation is the most commonly used approach to
estimate exposure, taking into account probability distributions. Risk assessment
requires an exact and systematic quantitative data analysis model, particularly
Risk Assessment of Human Exposure to Pyrethroids Through Food
247