Using the address for Metacrawler that you gave us, I tried looking up a series of searches that Metacrawler wasn't able to find. I first tried HEALTH PROMOTION, but was unsuccessful. I then tried FOOD BEHAVIOR, but that didn't work also. It kept saying that those searches under those particular names were unsuccessful, so I tried another name but with the same success. I was getting pretty fustrated at this point in time so I decided to use old reliable Yahoo and went under the heading of health. Under that heading, I clicked on to the link called Environmental Health. Another listing came on with various link headings, and I decided to click on the heading Toxic Hot Spots. Apparently, their homepage was still under construction, so I decided to go back to the listings of link headings. I tried the link"Quick Guide of Hazardous Substances" and was successful at reaching their homepage. Created by The Agency for Toxic Substances and Disease Registry (based in Atlanta, Georgia), the "Ouick Guide of Hazardous Substances" homepage has an alphabet link that can easily access any hazardous substance from A to Z. Out of curiosity, I started out on A and was suprised to find that you could easily scroll down all the way to Z. As I was scrolling down, I stumbled upon the recogniziable substance of lead, and clicked in to see what I could find.
The document was very informative and the style and language was easy to understand, with out all the scientific jargon that I was expecting. It (the document) answers a series of informative questions such as what is lead, what happens to the environment when contaminated by lead, its affects upon exposure, and so forth. There ia also a listing of federal government agencies that help protect us from lead. Agencies such as the Center for Disease Control or CDC, the Environmental Protection Agency, or EPA, and the Occupational Saftey and Health Adminstration, or OSHA.
As far as its effects on humans, lead is known to affect mental abilities in newborn babies, learning difficulties, limited physical and mental growth as well. In adults, lead may affect memory, and decreased reaction time. However, not all of the affects are counted for. Psychologists have the capability of helping lead poisoned people through means of studying their coginitive and behavioral processes.
All in all, I found this document interesting in the fact that I didn't know that such information could be found on this subject. It is good to know that documents such as these could be found on the internet.
To Christina's team report for week 4