Category Archives: Toxicity

Silent Spring: Enduring, Legendary

Silent Spring, by Rachel Carson

Silent Spring, by Rachel Carson

In 1962 with a formal background in biology, countless publications for the Bureau of Fisheries and the US Fish and Wildlife Service, Rachel Carson added to her volumes of work Silent Spring

, arguably the most enduring, controversial, and legendary books of the modern Sustainability Era.

Doubting her ability to find a magazine willing to publish a single article on the pessimistic topic of the effect of chemicals on the environment, Carson decided instead to produce a full length book.  Serialized in the New Yorker (desribed at the NRDC) prior to the 1962 publication, Silent Spring

quickly became the focus of incredible public attention. Coupled with this growing attention, the chemical industry responded to Silent Spring with a focused quarter-million-dollar campaign aiming to discredit Carson.  Despite the concerted effort by the chemical industry, a Presidential commission began looking into the issues – and Congress began considering tougher restrictions on chemicals. (Carson testified before Congress.)

Poignantly, Silent Spring is essentially a survey of research on pesticides, begins artistically with a story depicting a town having suffered a series of plagues. At the end of this chapter, Carson tells us that the town is fictitious, however, she adds that each of the events recounted “has actually happened somewhere.”

Lending substance to the original story, Carson goes on to describe the source of the plagues as newly designed man-made chemicals applied in massive quantities almost everywhere.  In doing this Carson introduces the singular analogy that runs through Silent Spring: “pesticides are like atomic radiation—invisible, with deadly effects that often manifest themselves only after a long delay.” Further, she identifies the qualities that are increasing the danger of these new chemicals/pesticides over their predecessors:

  1. Greater chemical potency
  2. Slower breakdown and decomposition of the chemicals
  3. A tendency for the chemicals to become concentrated in fatty tissue.

For Carson, it is also important to note that while a toxin may not constitute a severe danger in limited exposure and dose, danger occurs with ultimate accumulation in the body, and concentration up the food chain.

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WNYC – The Leonard Lopate Show: Off Label Uses

Leonard Lopate interviews

Keri Powell, a lawyer for the environmental group Earthjustice, who filed a suit requiring manufacturers to come clean on what’s in their products. We’ll also speak with industrial hygienist Monona Rossol from Arts Crafts and Theater Safety on why there’s been such resistance to comply – and what it means for our health.

Listen to the interview or follow the links to Powell’s and Rossol’s organizations for information on household chemical toxicity. I was struck to learn that formaldehyde is a byproduct of citrus oil – which, based on no evidence at all, I’d assumed was okay.

via Wikimedia Commonsvia WNYC – The Leonard Lopate Show: Off Label Uses May 11, 2009. Another reason we support WNYC; it’s hard to imagine a commercial radio station even raising the subject.

via Wikimedia Commons

Effect Measure: Primer on Bisphenol-A controversy

Effect Measure has a good explanation of what’s dangerous about Bisphenol-A. Because it’s so important – and outside of our expertise to paraphrase and summarize – and already so well-written – we’re going to, with apologies to Revere at Effect Measure – reproduce it in its entirety:

You’re in a crowded bar near the airport and your co-worker is trying to tell you something important. She wants you to do something before you drive her car to the garage for her. She is heading out of town. But you can’t hear her over the din from the crowd. It’s too noisy, too much cross talk. Later you discover she was telling you the gas gauge is broken and the tank almost empty. But you know that. After you ran out of gas on the freeway. Now imagine you are a developing fetus. Genes in your nervous system are turning on and off in a precise sequence in response to what’s going on in your developing brain. Your neurons are growing, making new connections, responding to the cues from other parts of the system that are also developing. The signals that coordinate this involve very tiny amounts of chemicals coursing through the blood stream. Hormones, like the the estrogens. But there’s a lot of noise from artificial chemicals that also stimulate cells, but not in response to a coordinated development plan. Chemical noise from the environment.  Continue reading