Risk analysis is a way of examining a hazard in order to avoid or reduce it by determining the severity and probability of harm to human health or the ecosystem from exposure to a toxic chemical compound.
Toxicological risk is estimated by looking at the potential of a specific chemical compound released into the environment and the potential for exposure to it. The overall risk is estimated for the specific compound released into the environment, the method of exposure to it (route of exposure) and the amount of exposure.
A risk assessment of this type requires information from a variety of disciplines such as toxicology, epidemiology and ecology, as well as chemistry, physics and mathematics. Listed here are the aspects most commonly included in a toxicological risk analysis according to the National Academy of Sciences of the United States of America (NAS) and set out some of the elements required for a toxicological risk analysis.
Risk analysis is divided into two parts, the first is risk assessment and the second is risk management.
Risk assessment is the use of scientific data and observations to define the health effects caused by exposure to hazardous materials or situations (NAS 1983). The questions here are: Is there a risk from exposure to a chemical? What is known about that risk? Who is most likely to be affected by that risk?
Risk assessment involves the collection of data to relate a response to a dose. These dose-response data can then be combined with estimates of human or other organism exposure to obtain a complete risk assessment.
In the health and environmental field, risk is identified as the probability that an individual or a population will have an increased incidence of adverse effects from exposure to the hazard (USEPA 2001).
The National Academy of Sciences of the United States of America (NAS 1983) suggests that risk assessment be divided into the following four steps:
- Risk Identification
- Exposure assessment
- Dose response assessment
- Risk characterization
On the other hand, risk management is the process of evaluating different alternatives and selecting the most appropriate regulatory action, taking into account the results obtained from the risk assessment and the social, economic and political aspects necessary for decision making. Risk management answers questions such as: should we be concerned about this risk, what should be done about it, and what should be done about it? Risk management consists of making decisions for the allocation of resources in a way that optimizes the protection of health and the environment.
In order to perform a risk analysis, we can use QSAR studies to make predictions of chemical and biological properties, which are calculated from a 3D virtual structure by computational methods, so they are a quantitative reflection or numerically describe each of the molecules, so it is not strange that its usefulness is focused on the agrochemical regulatory environment. From these studies, valuable information is obtained about the toxic chemical compound and/or impurities that are present in the formulations of the products, thus achieving a correct registration before regulatory entities such as COFEPRIS (in the case of Mexico).
At QSAR Analytics we understand the importance of complying with the required studies when registering an agrochemical product, which is why we have a perfect record of registrations obtained.
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