Microbeads are not
processed through standard sewer filtration [i].
These beads, which can provide a gentler face scrub, are entering into every
layer of the ocean food cycle. Plankton blooms containing microbeads are
consumed by various filter feeders. Plastic fibers of all kinds have been found
to be consumed by mussels in lab experiments[ii].
These ocean floor feeders[iii]
are unable to tell floating food micro particulates from microbeads. White,
blue, and clear microbeads are especially likely to be consumed as they
resemble naturally occurring fish eggs[iv].
This consumption of plastic doesn’t stop at the ocean’s surface, sea birds such
as fulmars consume fish laden with microbeads, and in turn are filled with
plastic particulates[v].
Once consumed, the
microbeads themselves do not pose a direct health issue. In research on rats
there was barely any direct absorption into the rat’s livers, less than 1%. Unfortunately,
there are some very nasty indirect effects. Microbeads drifting through the
ocean attract toxins such as polychlorinated biphenyls (PCBs), polyaromatic
hydrocarbons (PAHs), organochlorine pesticides (e.g., DDT, HCH), as well as
other organic contaminants[vi].
These toxins are then transferred to the stomachs of the animals that consume
them. These toxins then build up in fat cells and in turn trickle up the food
web[vii].
Fish who consume
these microplastics may not be able to process them out of their bodies[viii].
Once a significant amount of beads have built up it can lead to an increase of
the fish’s buoyancy, preventing it from swimming down. The beads can also cause
intestinal blockages and inflammation. It also could lead to “reduced
reproductive fitness, drowning, diminished predator avoidance, impairment of
feeding ability, and the potential transfer of damaging toxicants from seawater
and ultimately death (Wright et.al, 2013, p.487).”
Just ignoring the seafood section
off the menu won’t divorce humans from microbead contamination. When fish are
processed and filleted the waste fish is commonly used in animal feed. This
feed is then given to pigs and other livestock. It’s time for people to stop using microbeads
before all the bacon is ruined.
Help support the ban of microbead
plastics. Support H.R.1321
in the senate. An amendment to the Federal Food, Drug, and Cosmetic Act to
prohibit microbeads in cosmetics.
[i] Andrady,
A. L. (2011). Microplastics in the marine environment. Marine Pollution
Bulletin 62, 1596-1605. doi:10.1016/j.marpolbul2011.05.030, (see also) Boerger,
C. M., Lattin, G. L., Moore, S. L., & Moore, C. J. (2010). Plastic
ingestion by planktivorous fishes in the north pacific central gyre. Marine Pollution
Bulletin 60, 2275-2278., Bouwmeester, H., Hallman, P. C. H., & Peters, R.
J. B. (2015). Potential health impact of environmentally released micro- and
nonplastics in the human food production chain: Experiences from
nanotoxicology. Environmental Science & Technology 49, 8932-8947. doi:10.1021/acs.est.5b01090, Rios, L. M.,
Moore, C., Jones, P. R. (2007) Persistent organic pollutants carried by
synthetic polymers in the ocean environment. Marine pollution bulletin 54,
1230-1237. doi:10.1016/j.marpolbul.2007.03.022, Thompson, R. C., Olsen, Y.,
Mitchell, R. P., Davis, A., Rowland, S. J., John, A. W. G., McGonigle, D.,
& Russell, A. E. (2004). Lost at Sea: Where is all the plastic? Science
304, 838., &
Wright, S. L., Thompson, R. C., & Galloway, T. S.
(2013). The physical impacts of microplastics on marine organisms: A review.
Environmental Pollution 178, 483-492.
[ii] .Moore,
C., Jones, P. R. (2007) Persistent organic pollutants carried by synthetic
polymers in the ocean environment. Marine pollution bulletin 54, 1230-1237.
doi:10.1016/j.marpolbul.2007.03.022
[iii] Moos,
N., Burkhardt-Holm, P., & Kohler, A. (2012). Uptake and effect of
microplastics on cells and tissue of the blue mussel mytilus eduli L. after an
experimental exposure. Environmental Science & Technology 46, 11327-11335.
[iv] Boerger,
C. M., Lattin, G. L., Moore, S. L., & Moore, C. J. (2010). Plastic
ingestion by planktivorous fishes in the north pacific central gyre. Marine
Pollution Bulletin 60, 2275-2278.
[v] Avery-Gomm,
S., O’Hara, P. D., Kliene, L., Bowes, V., Wilson, L. K., & Barry, K. L.
(2012). Northern fulmars as biological monitors of trends of plastic pollution
in eastern north pacific. Marine Pollution Bulletin 64, 1776-1781.
[vi] Bouwmeester,
H., Hallman, P. C. H., & Peters, R. J. B. (2015). Potential health impact
of environmentally released micro- and nonplastics in the human food production
chain: Experiences from nanotoxicology. Environmental
Science & Technology 49, 8932-8947.
doi:10.1021/acs.est.5b01090
[vii] Cole,
C., Lindeque, P., Halsband, C. & Galloway, T. S. (2011). Microplastics as
contaminants in the marine environment: A review. Marine Pollution Bulletin 62,
2588-2587. doi:10.1016/j.marpolbul2011.09.025
[viii]
Fendall, L. S. & Sewell, M. A. (2009). Contributing to marine pollution by
washing your face: Microplastics in facial cleansers. Marine Pollution Bulletin 58, 1225-1228.
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