Question 5. In a spill response operation, one of the basic operating principles is to not make the situation worse. Discuss a real or imagined spill scenario, and explain two or more actions that might make the situation worse. Your response must be at least 300 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

Question 6 Discuss how vapor density and vapor pressure contribute to the hazards of a spilled or released hazardous material. Provide examples that illustrate your points. Your response must be at least 300 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

1. Share with the class some information on the hazardous material labeling system in use at either your current organization or a previous one. Is (or was) it easy to understand? Do you think the switch to GHS labels will improve understanding or make things more confusing?

2. Many safety experts recommend that an employer always schedule an informal conference with the area director after citations and penalties have been issued. Discuss the pros and cons of scheduling an informal conference after citations and penalties have been issued. What do you believe is the most important reason to schedule an informal conference?

3. Why is staffing so important to the organization? What are the three most important ethical principles that you feel organizations should adhere to in terms of their staffing philosophies? Why?

1) You are the project manager of an environmental company that was hired to cleanup a historical arsenic contamination site. Soil sampling results indicated the area impacted with arsenic above action levels is 30 feet by 55 feet. The depth of the arsenic plume is three feet below ground surface. The land owner wanted to clean this site for future development. Answer the questions below to help you prepare a cost estimate for this portion of the project. Your solutions and any assumptions to justify your estimate must be shown.

1. What is the chemical symbol of arsenic, and what group/family does it belong to?
2. Solve for the minimum volume of soil that will be excavated in cubic yards?
3. If each dump truck can transport 18 cubic yards, determine how many dump trucks loads will be transported? For calculation purposes, add a 15% “fluff factor” (add to the volume that will be transported).
4. If the bulk density of soil is 1350 kg/m3 (84.3 lb/ft3), solve for the weight of the soil that will be transported to a disposal site in kilograms?

Your total response to parts a-d must be at least 200 words in length.

2) This is a two-part question:

Part 1: Methanol and toluene are flammable liquids whose vapor pressures at 68ºF (20ºC) are 96 and 22 mmHg, respectively. Based solely on this data, determine which compound poses the greater risk of fire and explosion at 68ºF (20ºC). Explain your choice. In general, discuss how vapor pressure affects the volatility of a liquid?