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					    SCIENCE 10 - BIOACCUMLATION RESEARCH ASSIGNMENT (CHAP2.2)

OBJECTIVES:
 RECOGNIZE THE IMPACT OF SCIENCE AND TECHNOLOGY, SOCIETY, AND THE
   TECHNOLOGY ON INDIVIDUALS, SOCIETY, AND THE ENVIRONMENT
 EVALUATE A SCIENTIFIC CLAIM BASED ON THE SOURCE AND SUPPORTING EVIDENCE

INSTRUCTIONS:
1. Select one of the following topics and read the article below it and complete the
worksheet.

TOPICS:
1. Why is it dangerous to eat oysters and other shellfish in some months? What is red tide?

       RECORD LEVELS OF TOXIC ALGAE HURT COASTLINE

   http://search.ebscohost.com/login.aspx?direct=true&db=rch&AN=J0E251445539209
   &lang=en-ca&site=src-can

2. Through mercury contamination, Inuit Communities are experiencing higher levels of health
problems. Why and what have the effects been on the health of the Inuit?

       STUDY FINDS MERCURY, PCBS MAY BE AFFECTING INUIT BABIES
        http://search.ebscohost.com/login.aspx?direct=true&db=rch&AN=Q4K136558169703&site=src-
        live


3. Mercury has also been found in birds and even communities in the United States. What is
the message of this article?

       KEEPING TABS ON MERCURY
        http://elibrary.bigchalk.com/libweb/curriculumca/do/document?set=search&groupid=1&req
        uestid=lib_canada&resultid=19&edition=&ts=BD7BEFEA631A1EFE4FC207D9CDF37041_123
        9053022353&start=1&urn=urn%3Abigchalk%3AUS%3BBCLib%3Bdocument%3B11487281
        9

4. Nutritionists recommend that you eat fish for health benefits. Environmentalists warn that
eating some fish may be dangerous due to the toxic levels of mercury in them. Should you eat
fish?

       FISH HAS BENEFITS, RISK OF MERCURY

        HTTP://ELIBRARY.BIGCHALK.COM/ELIBWEB/CURRICULUMCA/DO/DOCUMENT?SET=SEARCH&DI
        CTIONARYCLICK=&SECONDARYNAV=&GROUPID=1&REQUESTID=LIB_CANADA&RESULTID=31&
        EDITION=&TS=11DCDE516EA4C0D9EC0DB6BB2EC6A2BB_1303183947095&START=26&PUBLICAT
        IONID=&URN=URN%3ABIGCHALK%3AUS%3BBCLIB%3BDOCUMENT%3B188658982
5. Small amounts of PCB’s are found in salmon. This does not pose a problem for humans;
however, it does pose a problem for killer whales off the West Coast of North America. Why?

       KILLER WHALES OFF WEST COAST EATING PCB-CONTAMINATED SALMON
        http://elibrary.bigchalk.com/libweb/curriculumca/do/document?set=search&groupid=1&requestid
        =lib_canada&resultid=5&edition=&ts=BD7BEFEA631A1EFE4FC207D9CDF37041_1239052137485
        &start=1&urn=urn%3Abigchalk%3AUS%3BBCLib%3Bdocument%3B160370093


6. Due to the accumulation of PCB’s in their living environment, the citizens of Sydney, Nova
Scotia are experiencing higher levels of health problems compared to other neighbourhoods in
Canada. Why and what health problems have they experienced in Sydney?

       THE TROUBLE WITH TAR PONDS
        http://elibrary.bigchalk.com/libweb/curriculumca/do/document?set=search&groupid=1&requestid
        =lib_canada&resultid=48&edition=&ts=BD7BEFEA631A1EFE4FC207D9CDF37041_123905146108
        5&start=26&urn=urn%3Abigchalk%3AUS%3BBCLib%3Bdocument%3B49548232


7. “A new study shows the typical pregnant woman has dozens of potentially toxic …chemicals
in her body -- including ingredients found in flame retardants and rocket fuel.” What are the
implications of this?

       PREGNANT WOMEN RIFE WITH CHEMICALS

        http://search.ebscohost.com/login.aspx?direct=true&db=rch&AN=J0E399137605
        911&lang=en-ca&site=s
        rc-can

8. According to this article, the government needs to do more to regulate a common chemical
found in electronics and home furnishings that make it difficult for them to burn. Should we
follow the lead of Sweden in banning the chemical?

       DRIVE UNDERWAY TO BAN A CONTROVERSIAL CHEMICAL

        http://elibrary.bigchalk.com/elibweb/curriculumca/do/document?set=search&dictionaryClick=&secondary
        Nav=&groupid=1&requestid=lib_canada&resultid=1&edition=&ts=AC75D0993395C8BA836E1406677C53D7
        _1317308520223&start=1&publicationId=&urn=urn%3Abigchalk%3AUS%3BBCLib%3Bdocument%3B174833
        027

9. Water bottles with the number 1 or 7 are no longer sold in many stores because they
contain the chemical BPA. Some say their fears are unfounded. Read and make up your own
mind.

       PLASTIC RAP
        http://elibrary.bigchalk.com/libweb/curriculumca/do/document?set=search&groupid=1&requestid
        =lib_canada&resultid=1&edition=&ts=8F46C25DEA65E9AB3709AD52396A9DD1_123913974564
        5&start=1&urn=urn%3Abigchalk%3AUS%3BBCLib%3Bdocument%3B161905406
10. High levels of toxins such as mercury and DDT are found in polar bears and other animals in
the Arctic north, thousands of miles away from pollution sources. Find out how they got there
according to the following article.

       SCIENTISTS PUT THE BLAME ON BIRDS FOR TOXINS IN ARCTIC ANIMALS
        http://web.ebscohost.com/src/detail?vid=3&hid=4&sid=1c8215d1-a3e4-484c-ae0f-
        d9b9de0f4eb0%40sessionmgr8&bdata=JmFtcDtsYW5nPWVuLWNhJnNpdGU9c3JjLWNhbg%3d%3
        d#db=mih&AN=J0E294114474605




11. Poor Polar Bears! They are ingesting chemicals from another source as well.

       POLAR BEARS FACE MELTING CHEMICAL COCKTAIL

    HTTP://ELIBRARY.BIGCHALK.COM/ELIBWEB/CURRICULUMCA/DO/DOCUMENT?SET=SEARCH&DICTI
    ONARYCLICK=&SECONDARYNAV=&GROUPID=1&REQUESTID=LIB_CANADA&RESULTID=41&EDITIO
    N=&TS=11DCDE516EA4C0D9EC0DB6BB2EC6A2BB_1303184203242&START=26&PUBLICATIONID=&
    URN=URN%3ABIGCHALK%3AUS%3BBCLIB%3BDOCUMENT%3B182760232




12. Birds in Alaska are also being affected by bioaccumulation. Find out what is happening to
them as a result of PCB’s and other chemicals.

       DEFORMED BEAKS ON THE RISE

        http://search.ebscohost.com/login.aspx?direct=true&db=rch&AN=58599779&lang=en-
        ca&site=src-can




13. Why are some of our becoming fish sad – according to this article?

       ANTIDEPRESSANTS MAKE FOR SAD FISH

    HTTP://SEARCH.EBSCOHOST.COM/LOGIN.ASPX?DIRECT=TRUE&DB=RCH&AN=35764
    042&LANG=EN-CA&SITE=SRC-CAN




14. There is concern about the effects of radiation from the nuclear reactors that are leaking
as a result of the earthquake in Japan. These concerns are valid based on what is happening
almost 25 years after the nuclear accident in Chernobyl.

       UKRAINE: CHERNOBYL EFFECTS COULD LAST CENTURIES

        http://elibrary.bigchalk.com/elibweb/curriculumca/do/document?set=search&dictionaryClic
        k=&secondaryNav=&groupid=1&requestid=lib_canada&resultid=22&edition=&ts=4EF88D1
        A34339AF7D25D567EA369FFCD_1303162719218&start=1&publicationId=&urn=urn%3Abi
        gchalk%3AUS%3BBCLib%3Bdocument%3B183234551
15. The effects of bioaccumulation are being felt in our backyard as well.

   SOCKEYE FACE CHEMICAL SOUP OF 200 CONTAMINANTS IN THE FRASER RIVER

        http://elibrary.bigchalk.com/elibweb/curriculumca/do/document?set=search&dictionaryClick=&secon
        daryNav=&groupid=1&requestid=lib_canada&resultid=1&edition=&ts=AC75D0993395C8BA836E14066
        77C53D7_1317310125268&start=1&publicationId=&urn=urn%3Abigchalk%3AUS%3BBCLib%3Bdocume
        nt%3B192612766

				
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