R​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​esearch and identify an environmental or occupational toxicant that effects either the respiratory, immune, or hepatic system. Research and discuss the following: Explain the normal function of the system and what makes it susceptible to toxicity. Describe how exposure to the toxicant is possible. Analyze the acute and/or chronic effects of the toxicant. Describe recent concerns about the toxicant (within the last two years) and any a​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​ctions taken to reduce the toxicant in the environment or reduce occupational exposure to the toxicant.