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Houston on a hazy day (l); houston on a clear day (r)

Credit: http://www.jpl.nasa.gov/news/features.cfm?feature=423

The sources of air pollutants are widely varied and include manmade and natural processes. For example, particles are emitted by manmade sources like diesel engines and smokestacks, and by natural sources such as volcanoes and windblown dust. Cows actually produce 80 million metric tons per year of methane , which can warm the planet and help form tropospheric ozone.

The Environmental Protection Agency posts Air Quality Index numbers to tell us how clean the air is in each part of the country each day. More information about this can be found at http://airnow.gov/index.cfm?action=aqibroch.index . In the Houston Chronicle, the weather page shows the ozone levels from the day before and a forecast of today’s ozone levels. Online, the Houston Chronicle has a “current air quality” map that you can click on. That takes you to an interactive map, where they can click on each monitor and see its meteorology and air pollution conditions. For the Westbury schools, the Bayland Park monitor (#13 in the bottom map) would be the closest to their campus. This map is available at http://weather.chron.com/US/TX/Houston.html.

Air quality index

Credit: http://airnow.gov/index.cfm?action=static.aqi#haz

The following AQI ranges correspond to certain ranges of ozone concentration in parts per billion (ppb). This can give students a sense of how their GLOBE ozone measurements (in ppb) relate to AQI levels, though technically the AQI is based on 8-hour averaged concentrations of ozone.

Air Quality Index Ozone Concentration (ppb)*
0-50 0-59
51-100 60-75
51-100 76-95
151-200 96-115
201-300 116-374
>300 >374
*These numbers were calculated by using the EPA’s conversion calculator, which can be found at http://www.airnow.gov/index.cfm?action=aqi.aqi_conc_calc.

Additional resources

The EPA provides reading material through Project A.I.R.E:

  1. Air pollution http://www.epa.gov/region01/students/pdfs/rd_airpol.pdf
  2. Health effects http://www.epa.gov/region01/students/pdfs/rd_health.pdf
  3. Weather and air quality http://www.epa.gov/region01/students/pdfs/weather.pdf
  4. Ozone http://www.epa.gov/region01/students/pdfs/ozone.pdf
  5. Automobiles and air pollution http://www.epa.gov/region01/students/pdfs/rd_auto.pdf
Loss of healthy green color, smaller size, and rough texture show the effects of ozone pollution on a leaf. Ozone interferes with the process of photosynthesis in plants. Credit: http://streaming.discoveryeducation.com/ 

Materials (for a class of 25)

  • Hygrometer (1 per class)
  • Infrared Thermometer (1 per class)
  • Ozone Test Strips (1 per class)
  • Ozone Scanner (1 per class)
  • Wind Vane (1 per class)
  • Thermal Glove (1 per class)
  • Cloud Charts (1 per class)
  • GLOBE Measurement Data Sheets (1 per student)
  • Access to computer (enough for two or three students to share a computer)
  • Access to UnitedLearning.com
  • Access to Brainpop.com
  • Projection Screen

Vocabulary

  • Ozone
  • Ultraviolet radiation
  • Air pollution
  • Oxygen atoms
  • Tropospheric ozone
  • Stratospheric ozone
  • Environment
  • Surface temperature
  • Air temperature
  • Humidity
  • Clouds
  • Wind direction
  • Environmental Protection Agency
  • Air Quality Index
  • Air pollutants
  • Particles
  • Manmade sources
  • Natural Sources
  • Methane

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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Source:  OpenStax, Rice air curriculum. OpenStax CNX. May 09, 2010 Download for free at http://cnx.org/content/col11200/1.1
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