Appendix E

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APPENDIX E
Nassau County Department of Health
Bureau of Environmental Protection
Pesticide Monitoring Program in Nassau County 
Sources of Pesticides Detected in Nassau County Wells - 2001 

Chlorothalonil 

  • Controls fungus on beans, carrots,
  • Controls fungus on beans, carrots, celery, corn, conifers and peanuts
  • Can contaminate groundwater after normalprescribed application 
  • (According to U.S. Govt. Accounting Office)
  • Most frequently applied fungicide to Long Island Golf Courses
  • Frequently used for turf and ornamental plants in Nassau County

 DBCP (1,2-Dibromo-3-Chloropropane)

  • Controls nematodes on berries, citrus, melons and nuts
  • Low to medium potential to be transformed; high potential to be transported
  • Registration cancelled (banned) by E.P.A.

 Desethylatrazine (Atrazine)

  • Controls many annual broadleaf weeds and certain grasses in corn, sorghum and citrus
  • Also used for general weed control on non-cropped industrial land
  • Second most common pesticide detected in CWS
  • Low potential to be transformed; high potential to be transported

 Dieldrin

  • Controls soil insects such as locusts
  • Registration banned by E.P.A.

 EDB (1,2-Dibromoethane, Ethylene dibromide)

  • Controls insects in soil, stored products, fruits and vegetables and nematodes in soil
  • Used as an additive in leaded gasoline
  • Medium potential to be transformed; high potential to be transported
  • Registration banned by E.P.A.

 Metalaxyl

  • Controls fungus on potatoes (potato late blight)
  • Eighth most applied fungicide to Long Island Golf Courses
  • Being reviewed by the E.P.A. for carcinogenicity

 Prometon

  • Controls perennials, broadleaf weeds and grasses in non-crop areas
  • High potential to be transported; medium potential to be transformed
  • Can contaminate groundwater after normal prescribed application
  • Applied to Long Island Golf Courses

 TCPA (Tetrachloroterephthalic acid)

  • Controls many annual grasses and broadleaf weeds
  • A breakdown product (metabolite) of Dacthal
  • Extensively used on home lawns, golf courses and farms

 Triadimefon

  • Sixth most applied fungicide to Long Island Golf Courses
  • Frequently used for turf in Nassau County