Archive for April, 2008

I’m on the pill….I drink tap water.

April 25th, 2008 by Kishore

Last month, we talked about the endocrine disruptor atrazine (it induces formation of aromatase…which plays a role in the conversion of testosterone to estrogen).

The timing was perfect, as the AP concluded a 5 month investigation into pharmaceuticals in national water supplies last month as well. They found trace amounts of pharmas in 24 major metropolitan areas, including San Francisco. In SF, the AP found the sex hormone estradiol present in trace quantities in our water. Scary stuff eh? Let’s break it down.

Let’s start at source: You take drugs. Drugs are designed to flood your system. You pee the extra out.

Pee travels down to the wastewater treatment plant. We went on a tour of a waste water plant….remember how they mentioned they don’t clean a number of organics (including cooking oils)? Well, that fun stuff often gets flushed out into the ocean or lakes unperturbed. Maybe some bacteria break it down along the way. It gets diluted through the water cycle…ends up in minute/microscopic quantities back in our water supply.

Studies have shown exposure to estrogen is part of path to certain cancers, including breast and prostate cancer.

We don’t know what long term exposure to these low levels of pharmas will do. Probably nothing on their own, but they are part of a greater picture of “stress” on our bodies.

If you’re scared, protect yourself by using a carbon filter…it effectively removes most of these pharmas even at low concentrations. And take the time to properly dispose of your drugs.

But let’s back up for a sec…how come these items go untreated at the wastewater plants? I specifically asked for the effluent data on my last visit to the wastewater treatment plant…got the runaround with no luck. And I think that’s the point…how are we “treating” our waste? Where is the transparency of data (the AP mentions how difficult it was to get this data)?

Well, I for one care about what is getting pushed out into the Pacific from my toilet. And I’m going to write my local water authority to ensure they do as well.

More Info:
AP Report on Pharma’s in Water
AP’s Test Results
SFPUC Response to AP Report
Proper Disposal of Prescription Drugs

[Slashdot] [Digg] [Reddit] [del.icio.us] [Facebook] [Technorati] [Google]

Category: Water, Pharmaceuticals | No Comments »

Nanomedicine

April 22nd, 2008 by Kishore

Dr. Tejal Desai discusses nanomedicine, nanotoxicology, and all else nano at this month’s science cafe.

 
icon for podpress  Podcast Video [61:38m]: Play Now | Play in Popup | Download (41)

 
icon for podpress  Podcast Video [61:47m]: Play Now | Play in Popup | Download (20)
[Slashdot] [Digg] [Reddit] [del.icio.us] [Facebook] [Technorati] [Google]

Category: Podcast | No Comments »

Biofuel Expert Alex Farrell Passes Away

April 17th, 2008 by Kishore

Professor Alex Farrell
This past Saturday, a few of us DtaSers went to a series of talks at Cal Day. One of the talks was on sustainable biofuels, featuring energy expert Professor Alex Farrell.

Sadly, the next day Professor Farrell died at his home in San Francisco. He was 46.

I am personally deeply saddened by this. He was one of my best friends’ thesis advisor. The attendees of that talk were probably some of the last few people to see him alive.

In lieu of flowers, the family requests that contributions in Farrell’s memory be made to the Alex Farrell Memorial Scholarship Fund, Energy and Resources Group, 310 Barrows Hall, #3050, Berkeley, CA 94720-3050. Please make checks out to “Regents of the University of California.”

You can read the obituary here.

[Slashdot] [Digg] [Reddit] [del.icio.us] [Facebook] [Technorati] [Google]

Category: Biofuels | No Comments »

Crossing the line: Atrazine & Congress

April 17th, 2008 by Kishore

Abnormal Gonads
Last month, Dr. Tyrone Hayes talked about “crossing the line” when he publicly called for people to get involved on the atrazine issue. He has faced immense criticism from colleagues, the government, and private entities for crossing that line.

I’m glad he crossed that line…the talk on atrazine was one of the most moving and infuriating I’ve ever attended. In a conversation with Al Gore, Tyrone learned that if two states bring up atrazine legislation, just TWO, open hearings on atrazine at the US congressional level could happen.

Tyrone maintains a website on atrazine: www.atrazinelovers.com

On his website, Tyrone offers a few links to be in action around atrazine.

1. Contact the EPA
Steeger.Thomas@epamail.epa.gov
Schnackenbeck.Joy@epamail.epa.gov
Bradbury.Stephen@epamail.epa.gov
Lindsay.Anne@epamail.epa.gov

2. Write your Congressperson

MN05EllisonKeith@mail.house.gov

This letter is a request urging you and your office to: 1) pursue a ban on the herbicide atrazine as described in Bill H.R. 3399 authored by Representative Keith Ellison, 2) investigate the chemical industry and EPA’s collaboration during the review of atrazine as requested by Keith Ellison on June 23, 2007 in a letter to Representative Henry Waxman, Chair of the Committee on Oversight and Government, and 3) to further urge the EPA to develop an effective plan for regulating atrazine and other endocrine disrupting chemicals as requested by Senator Barbara Boxer (Dallas Morning News, Sunday, May 27, 2007).

3. Write Syngenta, the manufacturer of Atrazine

tim.pastoor@syngenta.com
sherry.ford@syngenta.com
michael.vanausdeln@syngenta.com
alan.hosmer@syngenta.com

I urge you to get involved in any of the above ways. You voice can be the difference.

[Slashdot] [Digg] [Reddit] [del.icio.us] [Facebook] [Technorati] [Google]

Category: Pesticides | No Comments »

Women in Nanotech - One Researcher’s Experience

April 15th, 2008 by Kishore

Nanotechnology is clearly booming with numerous research opportunities emerging over the past few years. However, the field remains dominated by men, with upwards of 90% male researchers. The below video from Nova ScienceNow, follows nanotech researcher Naomi Halas…especially her struggles as a woman scientist.

Our next speaker, Dr. Tejal Desai, will be discussing her experience in the male dominated world of nanotech and her mentoring of young women into science.

Naomi Halas is a pioneering nanotechnologist bent on seeing practical applications for her work—and soon.

Profile: Naomi Halas

watch the video clip via:
QuickTime
RealVideo high |
low
Windows Media high |
low

[Slashdot] [Digg] [Reddit] [del.icio.us] [Facebook] [Technorati] [Google]

Category: Nanotechnology | No Comments »