Sustancia química prioritaria

Black and white chemical structure of bisphenol A
CAS Number
80-05-7

Bisphenol A (BPA) is used to make a hard plastic called polycarbonate. Until recently, BPA was also widely used to make the protective coatings inside food and drink cans, but US manufacturers have been phasing it out in response to consumer demand and scientific findings of serious health concerns. BPA may be in adhesives used to bond fabrics, such as for “no-stitch” clothing. It is also still used in some types of paper receipts.

Fact Sheet

BPA is found in:

  • Hard polycarbonate plastic in a variety of items, such as:
    • Some kitchenware, like plates, mugs, and storage bottles.
    • Eyeglass lenses, and screens for cell phones and laptop computers.
    • Safety equipment, like helmets and protective visors.
    • Parts for cars, light fixtures, and medical devices.
  • Some protective coatings inside food cans; on household appliances; inside metal drinking water pipes; and on laminate flooring and concrete.
  • Some clothing, including baby socks, blankets, and onesies.
  • Some dental sealants.
  • Some receipts printed on smooth shiny paper, such as from cash registers or gas pumps.
  • Building materials, like sealants, adhesives, and grout.

Possible health concerns of BPA:

  • May harm the reproductive system in women.
  • May interfere with the body’s natural hormones.
  • May affect the fetus and infant, including possible changes in development and behavior.
  • Might increase cancer risk.

Possible ways to reduce exposure to BPA:

  • Eat more fresh food and less canned food.
  • Use glass or stainless steel containers for food and drinks.
  • Request an electronic receipt, or no receipt, when possible. If you work as a cashier or otherwise frequently handle receipts, wear nitrile gloves.
  • Because BPA can come out of products and collect in dust:
    • Wash your and your child’s hands often, especially before preparing or eating food.
    • Clean your floors regularly, using a wet mop or HEPA vacuum if possible, and use a damp cloth to dust.

Biomonitoring California Information

Black and white chemical structure of di-2-ethylhexyl phthalate (DEHP)
CAS Number
various

Phthalates are added to vinyl to make soft and flexible plastic products, such as shower curtains.  Phthalates are also found in scented products, coatings like nail polish and paint, and a variety of other consumer goods.

Fact Sheet

Phthalates are found in

  • Products made from flexible vinyl plastics, sometimes called “PVC” or labeled with the recycling symbol “3”, including:
      • Shower curtains, flooring, and coverings on wires and cables.
      • School lunchboxes, binders, backpacks, modeling clay, and some soft plastic and inflatable toys.
      • Some plastic food packaging and some plastic containers.
      • Tubing and gloves used in food processing and medical care.
  • Fragrances in some candles, air fresheners, and personal care products like lotions, perfumes, hair products, and deodorants.
  • Some nail polish, paint, floor finishes, caulk, and adhesives.
  • Some medications and dietary supplements.

Possible health concerns of some phthalates

  • Can interfere with the body’s natural hormones.
  • Can affect development in the fetus, infants, and children.
  • Can decrease fertility.
  • May contribute to allergies and asthma.

Possible ways to reduce exposure to phthalates

  • Choose non-plastic alternatives when possible.  Otherwise, avoid flexible vinyl plastics, sometimes called “PVC” or labeled with a “3”.
  • Eat more fresh food and less processed and packaged food.
  • Choose products that do not list “fragrance” on the ingredient label.
  • Because phthalates come out of products and collect in dust, wash your hands often, especially before eating or preparing food, clean your floors regularly, and use a damp cloth to dust.

Biomonitoring California Information

Documents, Presentations, and Publications

Black and white chemical structure of BDE 47, a PBDE
CAS Number
various

PBDE flame retardants were commonly added to furniture, infant products, and electronics for many years.  They have spread through the environment and break down slowly.  U.S. production of some widely used PBDEs ended as of 2006, and the last major PBDE mixture is due to be phased out by the end of 2013.   The U.S. government is also working to prevent the addition of any PBDEs to new products, including imports, sold in the U.S.

Fact Sheet

PBDEs are found in

  • Polyurethane foam in furniture, pillows, motor vehicle seats, and baby products, like car seats and changing table pads, especially if manufactured before 2006.
  • Some hard plastic casings for electronics, such as TVs and computers; some mattresses, upholstery fabric, draperies, wires, and cables, especially if manufactured before 2013.
  • Some carpet padding made from recycled or scrap polyurethane foam.
  • Dust in homes, offices, and cars that contain products made with PBDEs.
  • Some high-fat foods, like sausages, high-fat cheeses, butter, and fatty fish. 

Possible health concerns of PBDEs

  • May interfere with the body’s natural hormones.
  • May harm the developing fetus and infant, possibly affecting later learning and behavior.
  • May decrease fertility.

Possible ways to reduce exposure to PBDEs

Reducing exposure to PBDEs is difficult because they have been extensively used in furniture and other products.  Actions that may help reduce exposure are listed below.

  • Because PBDEs come out of products and collect in dust:
      • Wash your hands often, especially before eating or preparing food.
      • Wash your children’s hands often.  Infants and toddlers get a lot of dust on their hands when they play or crawl on the floor.
      • Clean your floors regularly and use a damp cloth to dust.
  • Replace upholstered furniture that is torn or has crumbling foam.
  • Avoid using carpet padding made from recycled or scrap polyurethane foam.
  • Include plenty of variety in your diet.

Biomonitoring California Information

Documents, Presentations, and Publications

  • Polybrominated Diphenyl Ethers (PBDEs) Fact Sheet | Fact sheet | : PBDEsFactSheet.pdf
Periodic table entry for Cadmium that include the atomic number, abbreviation and mass
CAS Number
7440-43-9

Cadmium is a metal that is found in nature and is used in many industries and products.

Fact Sheet

Cadmium is found in

  • Cigarette and other tobacco smoke.
  • Some cheap metal jewelry, including some charms.
  • Rechargeable batteries labeled NiCd or NiCad.
  • Metal plating and solder.
  • Some red, yellow, and orange decorative paints, which may be used on glassware and pottery.

Possible health concerns of cadmium:

  • May harm the developing infant and child.
  • May harm the reproductive system in men.
  • Can damage the lungs and kidneys.
  • Can increase cancer risk.
  • Can weaken bones.

Possible ways to reduce exposure to cadmium:

  • Do not smoke or allow others to smoke in your home or car, or around your child.
  • Do not let children wear or play with cheap metal jewelry or charms.
  • Do not let children handle rechargeable batteries labeled NiCd or NiCad.
  • Properly recycle batteries (see below).
  • If you do any welding or metalworking, or work with cadmium in other ways:
    • Be sure that your work area is well ventilated, and use proper protective equipment.
    • Follow other safe work practices, including washing hands frequently, keeping work dust out of your home, and washing work clothes separately.
    • Keep children away from welding fumes and other metal vapors and dusts.
  • Because cadmium can collect in dust:
    • Wash your and your child’s hands often, especially before preparing or eating food.
    • Clean your floors regularly, using a wet mop or HEPA vacuum if possible, and use a damp cloth to dust.
  • Include plenty of variety in your and your child’s diet. Eat a well-balanced diet with enough iron, which can help reduce the amount of cadmium that your body absorbs. 

For More Information

Cadmium fact sheet: http://www.atsdr.cdc.gov/toxfaqs/tfacts5.pdf Battery recycling location: http://recyclenation.com/

Biomonitoring California Information

Documents, Presentations, and Publications

Structure of chlorpyrifos, an organophosphate pesticide
CAS Number
various

Organophosphate pesticides are used in commercial agriculture to control pests on fruit and vegetable crops.  They are also used in home gardens, for flea control on pets, and in some no-pest strips.  In the past, organophosphates were widely used inside homes to control other pests like termites and ants, but these uses have been discontinued. 

Fact Sheet

Organophosphate pesticides are found in

  • Some flea and tick collars, shampoos, sprays, and powders for dogs and cats.
  • Some garden pest control products and no-pest strips.
  • Some fruits and vegetables.  Small amounts of organophosphate pesticides found in these foods come from agricultural pesticide use. 
  • Air and dust in areas where organophosphate pesticides are used, such as some farms or home gardens.
  • Some treatments for head lice.

Possible health concerns of some organophosphate pesticides

  • May affect the nervous system.
  • May harm the developing fetus, possibly affecting later learning and behavior.

Possible ways to reduce exposure to organophosphate pesticides

  • Use pesticide-free methods for pest prevention in your home and garden.  If you choose to use pesticides, consider baits and traps instead of sprays.  Always follow directions for use, storage, and disposal.
  • To help control fleas without pesticides, comb pets with a flea comb, regularly bathe pets with pesticide-free shampoo, and wash pet bedding.
  • If a pesticide is needed for flea control, consider safer spot-on treatments or oral medications for your pet.  Ask your veterinarian about the safest choices.
  • Wash all fruits and vegetables before eating them.
  • Consider choosing organic or pesticide-free fruits and vegetables.
  • Because pesticides can be in dust, wash your hands often, especially before eating or preparing food, clean your floors regularly, and use a damp cloth to dust.

For More Information

Tips for pest prevention: http://www.cdpr.ca.gov/docs/dept/factshts/pull2.pdf Find local disposal site for pesticides: http://recyclenation.com/

Biomonitoring California Information

Documents, Presentations, and Publications

Structure of naphthalene, a PAH
CAS Number
various

PAHs are formed when materials like gasoline, diesel, tobacco, and wood are burned. They also form when foods are grilled, barbecued, smoked, fried, or roasted.

Hydroxy-polycyclic aromatic hydrocarbons (hydroxy-PAHs) are measured as indicators of exposure to the various PAHs.

Fact Sheet

PAHs are found in:

  • Tobacco and marijuana smoke, including from cigarettes, cigars, and pipes; and chewing tobacco.
  • Exhaust from cars, trucks, and buses, as well as road dust.
  • Wood smoke, such as from fireplaces, wood stoves, campfires, and wildfires.
  • Exhaust from gas burners, unvented gas fireplaces, and kerosene heaters.
  • Smoke from grilling or burning cooking oil or food.
  • Food that has been grilled, barbecued, smoked, fried, or roasted, and some teas.
  • Liquid smoke seasonings and flavorings.

Possible health concerns of some PAHs:

  • May contribute to asthma, bronchitis, and other respiratory problems.
  • May affect the developing fetus, including effects on growth.
  • May reduce fertility and interfere with the body’s natural hormones.
  • Can increase cancer risk.

Possible ways to reduce exposure to PAHs:

  • Take steps to improve indoor air quality:
    • Do not smoke or allow others to smoke in your home or car, or around your child.
    • Always use an exhaust fan or open windows when cooking indoors, especially when cooking with oils heated at high temperatures, or whenever using a gas stove.
    • Do not use a gas oven or gas burners to heat your home.
    • If you cook with barbecues and grills, use them outdoors only.
    • Do not idle cars inside garages, especially garages attached to your home.
    • Avoid burning wood, especially for home heating.
  • Limit how much you eat grilled, barbecued, smoked, fried, or roasted food. Try steaming, boiling, stewing, or poaching your food more often. Avoid burned food.
  • Because PAHs can collect in dust:
    • Wash your and your child’s hands often, especially before preparing or eating food.
    • Clean your floors regularly, using a wet mop or HEPA vacuum if possible, and use a damp cloth to dust.

For More Information

Fact sheet on PAHs: http://www.atsdr.cdc.gov/toxfaqs/tfacts69.pdf
Black and white chemical structure of PCB 153
CAS Number
various

PCBs were once widely used to insulate electrical equipment and as plasticizers.  PCBs were banned in the late 1970s but are still in some old equipment and products.  They have spread through the environment and take a long time to break down.

 Also see Hydroxy-PCBs.

Fact Sheet

PCBs are found in

  • Some fatty fish like salmon and canned sardines. (Fatty fish are still good to eat. These fish are an excellent source of healthy fats [like "omega-3" fatty acids] and protein.)
  • Some high-fat animal products like hamburger meat and ice cream.
  • Some products and building materials produced before 1980, such as:
    • Caulk in older buildings, including schools.
    • Some old fluorescent light fixtures.
    • Some paint, wood floor finishes, plastics, and foam or fiberglass insulation.

Possible health concerns of PCBs

  • Can harm the developing fetus and infant, possibly affecting growth and learning.
  • Can interfere with the body’s natural hormones and affect the immune system.
  • May decrease fertility.
  • May increase cancer risk.

Possible ways to reduce exposure to PCBs

PCBs have been decreasing in the environment and food because they are no longer manufactured.  You might further reduce your exposure by:

  • Including plenty of variety in your diet.
  • Trimming off skin from fish and fat from meat and cooking it on a rack to let fat drain off.
  • Washing your hands often, especially before eating or preparing food, cleaning your floors regularly, and dusting with a damp cloth.  This is because PCBs may be in dust and soil.

For More Information

Information for people who catch and eat fish: http://oehha.ca.gov/fish/pcbs-fish-caught-california PCBs in schools and other buildings: https://www.epa.gov/pcbs/polychlorinated-biphenyls-pcbs-building-materials

Biomonitoring California Information

Structure of DDT, an organochlorine pesticide
CAS Number
various

Organochlorine pesticides were once widely used in agriculture and for home pest control.  Most organochlorine pesticides, including all those measured by Biomonitoring California, are no longer used in the U.S.  These pesticides have spread through the environment and take a long time to break down. 

Fact Sheet

Organochlorine pesticides are found in

  • Some high‐fat dairy products, such as butter and high‐fat cheeses like cream cheese and American cheese.
  • Some high‐fat meats, such as some ground beef.
  • Some fatty fish, such as salmon and canned sardines. Fish are still good for you to eat. Fatty fish are an excellent source of healthy fats (like “omega‐3” fatty acids) and protein.

Possible health concerns of organochlorine pesticides

  • May affect the developing fetus, possibly leading to later changes in learning and behavior.
  • May interfere with the body’s natural hormones.
  • May have effects on reproduction, such as decreased fertility.
  • May increase cancer risk.

Possible ways to reduce exposure to organochlorine pesticides

Organochlorine pesticides have been decreasing in the environment and food because they are no longer used in the U.S. You might further reduce your exposure by:

  • Including plenty of variety in your diet.
  • Trimming off skin from fish and fat from meat and cooking on a rack to let fat drain off.
  • Washing your hands often, especially before eating or preparing food, cleaning your floors regularly, and dusting with a damp cloth. This is because organochlorine pesticides may be in dust and soil from past use.

For More Information

If you catch fish to eat, check fish advisories for specific water bodies (open link and scroll down): http://www.oehha.ca.gov/fish/so_cal/index.html

Biomonitoring California Information

Documents, Presentations, and Publications

Periodic table entry for mercury that include the atomic number, abbreviation and mass
CAS Number
7439-97-6

Mercury is a metal that is found in nature. It is released into the environment when coal is burned, by some industries, and from past use in gold mines. Mercury builds up in certain types of fish.

Fact Sheet

Mercury is found in:

  • Certain types of fish and seafood. This is the most common source of exposure to mercury.
  • Some imported face creams used for skin lightening, anti-aging, or acne.
  • Some herbal medicines and other traditional remedies, especially from China and India.
  • Silver-colored dental fillings.
  • Glass thermometers, older barometers, and blood pressure gauges.
  • Fluorescent lights, including compact fluorescent light (CFL) bulbs.

Possible health concerns of mercury:

  • Can affect brain development and cause learning and behavior problems in infants and children who were exposed in the womb.
  • Can harm the nervous system and kidneys.
  • May affect the heart.
  • May increase cancer risk.

Possible ways to reduce exposure to mercury:

  • Choose fish that are lower in mercury, such as salmon, tilapia, trout, canned light tuna, sardines, anchovies, and oysters.
  • Avoid fish that are high in mercury, such as shark, swordfish, orange roughy, bluefin and bigeye tuna, tilefish, king mackerel, and marlin.
  • Do not use imported face creams for skin lightening, anti-aging, or acne unless you are certain that they do not contain mercury.
  • Properly recycle CFL bulbs (see below).
  • Properly clean up broken thermometers, CFL bulbs, and other items containing mercury (see below). Do not let children play with silver liquid from items like mercury thermometers.

For More Information

Information on mercury for people who catch and eat fish, call OEHHA at (916) 327-7319 or visit: http://oehha.ca.gov/fish/mercury-fish-information-people-who-eat-fish Guide for choosing fish that are lower in mercury: http://oehha.ca.gov/media/downloads/fish/fact-sheet/2011commfishguidecolor.pdf Concerns about mercury exposure - contact the California Poison Control System hotline 1-800-222-1222 or https://calpoison.org/ Fact sheet on mercury in your environment, with information on cleaning up mercury spills: http://www.epa.gov/mercury/spills/ For CFL recycling locations, call 1-800-RECYCLING (1-800-732-9254), or visit: http://recyclenation.com/