CHEMISTRY

JAMB 2008 - Question 17

Chemistry 2008 JAMB Past Questions - Question 17: The uncovered raw food that is sold along major roads is likely to contain some amounts of

Choose the correct answers from the options given.
The uncovered raw food that is sold along major roads is likely to contain some amounts of
A:
B:
C:
D:
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Correct Answer

A

Explanation

You're right to be concerned about the potential health risks associated with consuming uncovered raw food sold along major roads. It's true that these foods **may** contain trace amounts of heavy metals like lead (Pb), copper (Cu), silver (Ag), and sodium (Na) due to several factors:

* **Air pollution:** Exhaust fumes from vehicles contain these metals, and since the food is uncovered, it can accumulate dust and particles containing these contaminants.
* **Soil contamination:** If the food is grown in soil near busy roads, it can absorb metals from the polluted soil.
* **Water contamination:** If the food is washed with contaminated water, it can pick up traces of metals.

However, it's important to **distinguish between possibility and risk:**

* **Traces vs. harmful levels:** While the presence of these metals is possible, the key question is whether the levels are high enough to be harmful. This depends on various factors like the specific type of food, the level of traffic, and the local soil and water quality.
* **Individual vs. population risk:** Even if some individual samples show slightly elevated levels, that doesn't necessarily translate to a significant population-wide health risk.

Therefore, making an informed decision requires considering the specific context:

* **Location:** Knowing the specific area where the food is sold helps assess the local traffic density and potential sources of contamination.
* **Type of food:** Different foods have varying capacities to absorb and accumulate metals.
* **Alternative sources:** Are there safer alternatives available for buying fresh produce?

Ultimately, the decision of whether or not to consume such food rests with you. If you're concerned, it's best to err on the side of caution and choose safer alternatives.
Remember, your health is paramount, and choosing safe food options is always a wise decision.

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