User Account

All Pages

Describe the potential negative impacts on a small river

Assignment Help Mechanical Engineering
Reference no: EM13857316

1- Describe how lethal does (LD) levels and effective does (ED) levels are used to assess the positive and negative impacts of chemicals. Describe how safe exposures and safe dosages are assessed.

2- (i) Describe the potential negative impacts on a small river downstream from where it receives a dairy products factory liquid waste discharge that has a high biological oxygen demand (BOD).

(ii) Describe how soils contaminated by heavy metals can be decontaminated with living plants.

3- (i) what are the main sources for anthropogenic sulphur dioxide (SO2) emissions that can create acid rain? Describe the impacts that acid rain can have on forest and lake ecosystems, as well as buildings and other constructed structures.

(ii) what problems can nitrogen oxides emitted from burning fossil fuels cause in the environment?

4- what is the significance of the individual factors used to assess the Air Quality Index (AQI)? Describe the how the AQI is determined and used.

5- (i) why is the ozone layer important to human health and wellbeing? Describe how anthropogenic chemicals can destroy the ozone layer.

(ii) Describe how petrochemical smog is created, including the conditions needed for its formation, and the potential health impacts that can occur as a result of its occurrence.

For each of the above 5 questions describe, discuss and add to the answers (diagram or figure or tables where appropriate and needed.)

Reference no: EM13857316

Questions Cloud

Define the term operations management : Define Operations management. Explain the key concepts of Operations management with a schematic diagram. Define the term operations management. Briefly explain the strategic role of operations
Draw to scale the less-than ogive for the given data : Using seven classes of equal width organize the above data as a less-than cumulative frequency distribution. Draw to scale the less-than ogive for the above data.
Properly cite the diagnostic statistical manual : Properly cite the diagnostic statistical manual, and insert two additional references that are properly cited.
Describe key characteristics for the three states of matter : Describe your results for the melting point of acetamide. Were your results consistent? What was the range of values?
Describe the potential negative impacts on a small river : Describe the potential negative impacts on a small river downstream from where it receives a dairy products factory liquid waste discharge that has a high biological oxygen demand (BOD).
Is sufficient evidence to conclude difference of stated mean : A random sample of 20 one-way fares during particular month had a mean of $210 with a standard deviation of $43. At 0.02, is there sufficient evidence to conclude a difference from the stated mean?
What is the empirical formula of the compound : What mass of KClO4 (in kg) can be obtained from 3.40 kg of KClO when these reactions are carried out and which reactant is the oxidizing agent and which reactant is the reducing agent?
Demonstrates ethical scholarship in accurate representation : demonstrates ethical scholarship in accurate representation and attribution of sources; and displays accurate spelling, grammar, and punctuation.
Submit a valid design before sarting building : You must submit a valid design to me before you will receive your building materials. I will not grade your design based on whether it will support the necessary load. I am only approving it as to whether it is a design that meets the building req..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  A vessel contains 4 kg of wet steam liquid-vapor mixture at

a vessel contains 4 kg of wet steam liquid-vapor mixture at 140 degc. after the addition of heat the steam has a

  The settling time does not change over range of gain values

How can you tell from a root locus if the settling time does not change over a range of gain values? What values of damping is associated when a pair of dominant poles Crosse the imaginary axis?

  How much 235u was consumed on a ioooo-nautical-mile voyage

the reactor on the nuclear ship savannah operated at a power of 69 mw.a how much 235u was consumed on a

  Compare the heat transfer coefficient form water to air

water droplets at 87 0c in a cooling tower have an average diameter of 0.15 cm. the airstream which moves at a velocity

  Determine the slenderness ratio

determine the slenderness ratio of a 5 m column with built end if its cross section is a circular with a radius of 40 mm and b 50 mm square use the concept of effective length.

  Calculate the critical heat flux on a large horizontal

calculate the critical heat flux on a large horizontal surface for the following fluids at 1 atm mercury ethanol and

  The compressor uses 16 kw of power what is the maximum

a heat pump with refrigerant 134a is used maintain a house at 25 degc by absorbing heat from a geothermal water source

  What is the ideal mechanical advantage of the wedge

A hydraulic shear applies 2000 lb force to a wedge. It is used to shear plate steel to rough size. The shear has a 1/4 inch thick cutting blade with a 45 degree slope. What is the ideal mechanical advantage of the wedge?

  Nitrogen gas is now expanded polytropically

A piston-cylinder device initially contains 0.007m^3 of nitrogen gas at 130kPa and 120C. The nitrogen gas is now expanded polytropically to a state of 100 kPa and 100C. Determine the boundary work done during this process. I know I need to use the fo..

  Determine the total rate of coal consumption kgs qin mfuel

a steam generator in a power plant consists of two separate heat exchanger devices a boiler which converts compressed

  Draw the equipment and show the changes from the starting

saturated liquid ammonia is compressed adiabatically in a pistoncylinder. the ammonia starts at 40f and the

  What percentage of the water flow rate must be supplied as

air enters a counterflow cooling tower at a rate of 100 m3s at 30 degree c dbt and 40 relative humidity. air leaves at

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd