Nishi and New Harmony differ

By From page A6 | March 11, 2014

Comment has been made about my recent letter giving my opinion that no residences be built in the Nishi property versus my prior support for the New Harmony project.

I will post the full New Harmony analysis on the UCD Delta website, http://delta.ucdavis.edu, next week, but in summary, my support of New Harmony was based on five main factors:

* The dominant southwest winds almost always blow from New Harmony toward the freeway. The exceptions are strong northwest winds that have high dilution factors, which will be enhanced as the trees I requested grow taller;

* The freeway is at-grade, unlike the elevated section upwind of Nishi;

* The traffic north of New Harmony usually flows freely, with relatively little braking and acceleration (unlike just upwind of the Nishi property;

* In 2002, I actually measured for five weeks, every three hours, pollution just south of Interstate 80 about 1 ½ miles east of New Harmony as part of an American Lung Association (now Breathe California of Sacramento) valley transect. It was at about the same distance south of the freeway as New Harmony. On the average, the aerosols at that site were slightly less than at my house in Davis well west of Highway 113; and

* New Harmony has done clever things with air intakes, placing them farther from the freeway, and has excellent air filters.

Tom Cahill


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