Which of the following statement$\text{(s)}$ is/are correct?
- Increased levels of carbon monoxide in the indoor environment result in the formation of carboxyhemoglobin and the long term exposure becomes a cause of cardiovascular diseases
- Volatile organic compounds act as one of the precursors to the formation of photochemical smog in the presence of sunlight
- Long term exposure to the increased level of photochemical smog becomes a cause of chest constriction and irritation of the mucous membrane
- Increased levels of volatile organic compounds in the indoor environment will result in the formation of photochemical smog which is a cause of cardiovascular diseases