DDT concentrartion recorded in human body has been

Options

A. 0.3-0.7 ppm
B. 1.3-3.1 ppm
C. 13-31 ppm
D. 30-70 ppm .

Answer

To solve the question regarding the concentration of DDT recorded in the human body, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Context**:
- DDT (Dichlorodiphenyltrichloroethane) is an organochlorine pesticide that was widely used for agricultural purposes. However, due to its harmful effects on health and the environment, it has been banned globally.

2. **Recognize the Properties of DDT**:
- DDT is insoluble in water and highly soluble in fats. This means that it tends to accumulate in the fatty tissues of organisms rather than being excreted.

3. **Learn About Bioaccumulation and Biomagnification**:
- DDT can accumulate in the bodies of organisms (bioaccumulation) and can become more concentrated as it moves up the food chain (biomagnification). This means that top predators, including humans, can have significantly higher concentrations of DDT.

4. **Identify the Concentration Range**:
- The question provides multiple-choice options for the concentration of DDT in the human body:
- A) 0.3 to 0.7 ppm
- B) 1.3 to 3.1 ppm
- C) 13 to 31 ppm
- D) 30 to 70 ppm

5. **Determine the Correct Answer**:
- Based on the properties of DDT and its behavior in the environment, it is known that the concentration of DDT in humans is typically in the range of 13 to 31 parts per million (ppm). This is due to the accumulation through the food chain and its persistence in the environment.

6. **Final Answer**:
- Therefore, the concentration of DDT recorded in the human body is **13 to 31 ppm**.