UCD Chemistry Club - PowerPoint PPT Presentation

1 / 6
About This Presentation
Title:

UCD Chemistry Club

Description:

EARTH DAY!! YOU Can Make A Difference!!! GREEN CHEMISTRY ... American Chemical Society Earth Day Page: http://www.chemistry.org/portal/a/c/s/1 ... – PowerPoint PPT presentation

Number of Views:105
Avg rating:3.0/5.0
Slides: 7
Provided by: cmcla
Category:
Tags: ucd | chemistry | club | day | earth

less

Transcript and Presenter's Notes

Title: UCD Chemistry Club


1
UCD Chemistry Club
Presents.....
EARTH DAY!!
2005
YOU Can Make A Difference!!!
2
GREEN CHEMISTRY
  • Green Chemistry is being aware of the toxic
    effects chemicals have on humans, animals and the
    environment.
  • Green chemistry is reducing the amount of
    resources used in labs and industrial processes.
  • Green chemistry is minimizing the amount of
    toxic chemicals and hazardous waste that are used
    or produced in any chemical process.
  • The 12 rules of Green Chemistry as designated by
    the American Chemical Society are
  • Preventing waste is better than treating it after
    its formation.
  • Synthetic methods should be designed to maximize
    the incorporation of all materials used in the
    process into the final product.
  • Wherever practicable, synthetic methodologies
    should be designed to use and generate substances
    that possess little or no toxicity to human
    health and the environment.
  • Chemical products should be designed to preserve
    efficacy of function while reducing toxicity.
  • The use of auxiliary substances (e.g. solvents,
    separation agents, etc.) should be made
    unnecessary whenever possible and innocuous when
    used.
  • Energy requirements should be recognized for
    their environmental and economic impacts and
    should be minimized. Synthetic methods should be
    conducted at ambient temperature and pressure.
  • A raw material feedstock should be renewable
    rather than depleting whenever technically and
    economically practical.
  • Unnecessary derivatization (blocking group,
    protection/deprotection, temporary modification
    of physical/chemical processes) should be avoided
    whenever possible.
  • Catalytic reagents that are as selective as
    possible are superior to stoichiometric reagents.
  • Chemical products should be designed so that at
    the end of their function they do not persist in
    the environment and break down into innocuous
    products.
  • Analytical methodologies need to be further
    developed to allow real-time, in-process
    monitoring and control prior to the formation of
    hazardous substances.
  • Substances and the form of a substance used in a
    chemical process should be chosen so as to
    minimize the potential for chemical accidents,
    including releases, explosions and fires.

3
Litter
  • The Plan of Action
  • Set an example by not littering
  • Set an example by picking up litter
  • Keep a litter bag in your car and bring one with
    on day trips in case no waste bins are available.
  • Do not overfill waste bins as litter can be blown
    out by the wind or picked up by scavengers.
  • Remove flyers from your door promptly so that
    they will not blow out and become litter
  • Always place waste in the most appropriate place
    a trash can. Whether it is convenient or not,
    trash belongs in the trash can!
  • Always leave a place looking better than how you
    found it!
  • The Facts
  • Litter is one of the most recognized
    environmental dangers as 94 of the population
    believe it is a serious problem (yet millions of
    people continue to litter everyday).
  • Litter can spread disease as it provides a
    breeding ground for vermin and bacteria, it can
    get into water systems causing contamination, it
    attracts scavenger animals (which also carry
    diseases) and it can harm animals by choking
    them, causing them to get stuck, or destroying
    their digestive tracts.
  • Litter is not biodegradable so it will remain
    floating about our planet for years and years to
    come, if no action is taken to stop it.
  • Cigarette butts make up the majority of discarded
    items. They require over 5 years to biodegrade
    and contain over 4000 chemicals, many of which
    are harmful to living organisms.
  • Plastics and paper constitute about a third of
    little, the remainder consists of glass,
    synthetic materials and aluminum. On average each
    person consumes over 190 pounds of plastic each
    year. Plastic does not biodegrade so it is
    important to recycle this widely used material.

Resources Environmental Protection
Agency http//www.epa.gov Earth Care
http//www.earthsky.org/shows/earthcare/ America
n Chemical Society Earth Day Page http//www.ch
emistry.org/portal/a/c/s/1
4
AIR POLLUTION
  • The Facts
  • The United States, consisting of only 5 of the
    worlds population, produces 25 of the entire
    output of carbon dioxide (CO2) - a green house
    gas, 70 of carbon monoxide (CO), and 50 of the
    CFCs (styrofoam, air conditioning, cleaning
    products) emitted into the atmosphere.
  • CO and CO2 react with oxygen to create ground
    level ozone and smog which damage lung and nasal
    tissues causing severe health problems. They also
    rise into the stratosphere and deplete ozone.
  • The Ozone is depleting at a rate of 5-10 each
    decade and the rate is increasing over time
    because CFCs emissions are increasing plus,
    CFCs remain in the atmosphere for up to 400
    years.
  • The combination of ozone depletion and global
    warming will have catastrophic consequences.
  • Algae, forests and many crops such as soy,
    peas, potatoes, beans and melons will die. This
    will lead to a food shortage for many countries
    as well as a huge migration of animals and fish
    (those which survive).
  • UV radiation will cause most of the population
    to develop cataracts and increase deaths from
    skin cancer by 60 in 10 years.
  • The increase in temperatures will cause many
    people to die of heart stress and heat stroke.
  • The Plan of Action
  • Walk, use a bicycle, or take public
    transportation to reduce car emissions and the
    use of car air-conditioners (in Japan only 1/5000
    of the population owns a motor vehicle).
  • Do not use Styrofoam products, CFC cleaning
    agents or air-conditioners.
  • Campaign your legislature to stop the production
    of CFCs and support environmentally safe
    products such as hydrogen powered cars.
  • Dispose of Styrofoam, old cars, air conditioners
    and refrigerators properly as CFCs can continue
    to leak out of these products for up to 2000
    years.
  • Resources
  • If You Love Your Planet by Helen Caldicott. The
    EPA Website
  • http//www.epa.gov
  • Chevron Gasoline Website
  • http//www.chevron.com/prodserv/fuels/bulletin/mot
    orgas/motor_gas.pdf
  • Safe Disposal of CFCs
  • http//www.envocare.co.uk/hazardous_waste.htm

5
Water Conservation
  • The Plan of Action
  • Fix leaks indoor appliances, water-using
    systems, and outdoor irrigation systems. Indoor
    leaks waste over 10 of the water you use and
    irrigation leaks in older systems can waste
    50-70 water you use.
  • Replace old toilet - being the largest source of
    wasted water in your home or old washing machines
    - being the second largest source of wasted water
    in the home.
  • Use plants that grow naturally in your climate
    and include a more water efficient landscape
    scheme such as xeriscaping or composting.
  • Chill drinking water in a pitcher instead of
    running the faucet until the water is cold.
  • Aerate your lawn and use a sprinkler with larger
    drops.
  • Clean vegetables in the sink when it is full of
    clean water instead of running water to clean
    them.
  • Wash your car with a bucket of soapy water and
    buy a nozzle to turn off water between rinsings.
  • The Facts
  • The average consumer uses about 150 gallons per
    day per person.
  • A leak of one drip per second wastes 3,154
    gallons per year and a trickle of 1/16-inch
    diameter wastes 186,624 gallons of water a year
    at a cost of 531.81
  • More than half of the water used over a year is
    used to irrigate the landscape for example,
    healthy bluegrass requires about 2 ½ feet of
    water (18 gallons) per square foot applied per
    year.
  • On average, ONLY 17 inches of rain fall on
    Colorado in a year. Drought is an intriguing
    natural hazard because it has a slow onset, has
    no clear beginning or end, and can last from
    months to years.
  • Although the Colorado state government has a
    statewide plan to mitigate and prepare for
    drought, the communities have done very little
    drought planning.
  • http//cwcb.state.co.us/owc/Drought_Planning/Plann
    ingForDrought.pdf

The picture seen below shows how the water
drought during the dust bowl affected Buca County
in 1936.
Resources Water-Use
it Wisely http//www.wateruseitwisely.com/conserva
tionists/index.asp Westminster Water
Conservation http//www.ci.westminster.co.us/res/e
nv/water/2680_waterwise.htm Water
Conservation http//www.gladstone.mo.us/PublicWork
s/waterconservation.asp Low Water Use Benefits
and Methods http//www.nol.org/home/NEO/neq_online
/dec2002/dec2002.00.htm Water Conservation Ideas
for Restaurants http//www.dep.state.pa.us/dep/sub
ject/hotopics/drought/facts/restnt.htm USGS Water
Conservation Fact Sheet http//water.usgs.gov/watu
se/wufactsheet.html
6
Recycling
  • The Plan of Action
  • Call Denver Recycles at (720) 865-6805 or visit
    their website http//www.denvergov.org/recycle/si
    gnup.asp.
  • and start recycling today!
  • Tri-R Recycling accepts all types of cardboard
    and has a bin for plastic bags. 303.399.6351
    x198
  • http//www.ewersarchitecture.com/recycle.htm
  • Albertsons has recycling bins for plastic bags
  • Oxford Recycling can recycle asphalt, concrete,
    tires and wood. 303.762.1160
  • The Facts
  • On average, each one of us produces 4.4 pounds of
    solid waste each day (http//www.kab.org/trashfact
    s.cfm).
  • In a state with over 3 million residents, we
    generate close to 3,000,000 tons of municipal
    solid waste (MSW) each year (see link above).
  • Recycling a four-foot stack of
  • newspapers saves the equivalent
  • of one 40-foot fir tree.
  • Every glass bottle recycled saves
  • enough energy to light a 100-watt light bulb for
    4 hours.
  • Making cans from recycled aluminum saves 95 of
    the energy required to produce cans from raw
    material.
  • Americans throw away enough aluminum to rebuild
    the entire commercial airline fleet every three
    months.
  • Recycling efforts at CU have prevented over
    235,000 fir trees from being cut down and has
    saved 415,000 gallons of gasoline, 98 million
    gallons of water, 843,000 pounds of air
    pollutants, 65 million kilowatt hours of
    electrically, and 67,500 cubic yards of landfill
    waste since 1980!
  • http//www.colorado.edu/recycling/get_involved/bul
    letin/10.html

Chem Club Challenge
We challenge the entire campus to recycle from
April 22 May 13 (only 3 weeks!). Email us how
many bags, boxes, trash cans, etc you recycled
at chemclubucd_at_hotmail.com . We will tally the
amount the whole campus recycled and show
everyone what a big difference we can make!!
Results will be posted May 15th at
http//thunder1.cudenver.edu/chemclub/
Resources Cu Recycling http//www.colorado.edu
/cure/ Colorado Recycles http//www.colorado-rec
ycles.org/guide/ Rooney Road Recyling
Center http//www.co.jefferson.co.us/ext/dpt/port
al/hazmat/ Colorado Association for
Recycling http//www.cafr.org/whatsnews.htm Denve
r Recycles http//www.denvergov.org/recycle/signu
p.asp
Write a Comment
User Comments (0)
About PowerShow.com