Reactions | July 31, 2017 Issue - Vol. 95 Issue 31 | Chemical & Engineering News
Volume 95 Issue 31 | p. 3
Issue Date: July 31, 2017

Reactions

Department: Letters
Keywords: Opinion, chlorpyrifos, pesticides, Andrew Liveris, Dow, EPA, Scott Pruitt

▸ Letters to the editor

Pesticide poetry

In the wake of a federal court’s ruling to uphold the U.S. Environmental Protection Agency’s decision not to ban chlorpyrifos (C&EN, July 24, page 15), a reader wrote a poem.

         Song of Chlorpyrifos
Let us now sing of chlorpyrifos, downbeat on py, /
a complex organophosphate, accent on phos— /
insecticide, acaricide, miticide.
Decidedly, the musical, topical chlorpyrifos /
is a killer. It so targets mites, ticks, and the like /
it moved Dow Chemical CEO Andrew Liveris /
to urge EPA head Scott Pruitt to reverse /
an Obama Administration ban on its use.
So, soon after a little tête-à-tête /
as an aside at an annual industry conference, /
good friend Scott, for a great many years dead set /
against the agency and now out to spite /
Obama, complied, opening up the floodgate.
But wait, there’s a second verse, stress on perverse, /
in our song on this multi-cide, not just greed, worse— /
the killing of facts, insights, and children. Scientific studies show that chlorpyrifos /
can damage development in children’s brains, /
a consequence these men seem to disdain. /
Liveris, doing his job with unsubtle legerdemain, /
is simply trying to boost his bottom line, but Pruitt, privateer wafted into public service /
on the wave of the wand of Donald the Barbarian, /
in dismissing the science and the scientists /
who made it, dismisses multiple bests /
of adult minds, and in children, so many promises.

Llyn Clague
Hastings-on-Hudson, N.Y.


▸ From the web

Re: Writing the human genome

A reader proposes an idea for genome writing.
cenm.ag/writinggenome

Nice review of plans and progress in a challenging and controversial set of projects. It does seem that starting with the mouse genome instead of human would yield many of the same insights and tools, and an easy test-bed for assessing genome-level changes w/o provoking a predictable ethical backlash; but perhaps the latter response was part of these creators’ plan to stimulate an open discussion?

Gordon Robinson

 
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Comments
Takeshi Nakano (Sat Aug 26 19:02:30 EDT 2017)
Just information

We published 2,3,7,8-TCDD analogue from thermal process of Chlorpyrifos. Please check it.

Sakiyama T, Weber R, Behnisch P, Nakano T (2011), Preliminary Assessment of Dioxin-Like Compounds In/From Chlorpyrifos - A Potential Precursor of the Pyridine Analogue of 2,3,7,8-TCDD
http://www.dioxin20xx.org/pdfs/2011/0324.pdf

Sakiyama, T, Weber, R, Behnisch, P, Nakano, T (2012), Formation of the pyridine-analogue of 2,3,7,8-TCDD by thermal treatment of chlorpyrifos, chlorpyrifos-methyl and their major degradation product 3,5,6-trichloro-2-pyridinol
http://www.dioxin20xx.org/pdfs/2012/1371.pdf

Behnisch, P, Sakiyama, T, Weber, R, Brouwer, B, Nakano, T (2013), DIOXIN-LIKE ACTIVITY MEASURED BY DR CALUXTM FROM THERMAL TREATMENT OF CHLORPYRIFOS AND OTHER POTENTIAL PRECURSORS OF THE PYRIDINE ANALOGUE OF 2,3,7,8-TCDD
http://www.dioxin20xx.org/pdfs/2013/1602.pdf

Analysis of Thermal Reaction Products of Chlorpyrifos Using LC/MS and GC/MS

Hiroshi MORIWAKI, Takanori SAKIYAMA, Yoshinari YAMOTO, Roland WEBER, Peter BEHNISCH, Ryuichi ARAKAWA and Takeshi NAKANO, BUNSEKI KAGAKU Vol. 62, No. 10, pp. 855-863(2013)
E-mail : ntakeshi@jrl.eng.osaka-u.ac.jp

https://www.jstage.jst.go.jp/article/bunsekikagaku/62/10/62_855/_pdf

Products of a thermal reaction of chlorpyrifos were analyzed by LC/MS and GC/MS. As a result, it was found that chlorpyrifos undergoes an elimination reaction of phosphate by a thermal reaction. Furthermore, it is indicated that the structural analogue of 2,3,7,8-TCDD arises by a thermal reaction of chlorpyrifos. In addition, the toxicity of the products of the thermal reaction of chlorpyrifos, evaluated by DR-CALUX®, was higher than that of chlorpyrifos itself.

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