tungwaiyip.info

home

about me

links

Blog

< June 2008 >
SuMoTuWeThFrSa
1 2 3 4 5 6 7
8 91011121314
15161718192021
22232425262728
2930     

past articles »

Click for San Francisco, California Forecast

San Francisco, USA

 

Plastic bag pollution

Recently I have come to aware of the issue of Great Pacific Garbage Patch from the media. It is large region in the Pacific Ocean that has accumulated much man-made garbage carried there by ocean current. Amount them are many plastic trash. On one hand plastic are very durable because they are not biodegradable. On the other hand plastic are photodegradable, meaning under the exposure of sunlight, they will slowly break down into smaller and smaller pieces. The result is a high concentration of pollutant in the water that is nearly impossible to clean up.

To most people this problem is nothing more than just a scientific interest. After all we don't venture into the middle of the ocean. So this problem is out of sight, out of mind. But today I have personally experienced the effect of photodegradation right in my own backyard.

Two years ago my mother has spent several months in my home. In her spare time she has built a vegetable garden in the yard. Being, shall I say, a resourceful person, she has reused many trash items to build a trellis. For example she scavenged many plastic bags that we would have throw away and used it as ties to the stakes.

Unfortunately, after she has left, we have not given the garden proper upkeep. It was quickly overrun by weeds. And finally I have to clear it out. As I was dismantling the trellis, I found the plastic bags have become very flaky. After exposed in sunlight for 2 years, the have all photodegraded. As I tried to remove them, they just break down into small pieces of white plastic and scattered all over the garden. There is just no way for me to mop up these tiny pieces from the soil. Who would have thought plastic bags can turn into a much bigger headache after it has degraded like this.

2008.06.14 comments

 

 

blog comments powered by Disqus

past articles »

 

BBC News

 

Hurricane Maria 'devastates' Dominica: PM (19 Sep 2017)

 

Hurricane Maria threatens British Virgin Islands (18 Sep 2017)

 

Rohingya crisis: Suu Kyi does not fear global 'scrutiny' (19 Sep 2017)

 

Yemen war: What happened to Saleem? (18 Sep 2017)

 

German WW1 U-boat found off Belgian coast (19 Sep 2017)

 

Donald Trump to call for more pressure on N Korea in first UN speech (19 Sep 2017)

 

Toys 'R' Us files for bankruptcy protection in US (19 Sep 2017)

 

Some Auckland petrol stations run out of fuel after burst pipe (19 Sep 2017)

 

Daca: Nancy Pelosi heckled as 'liar' in Dreamers protest (19 Sep 2017)

 

Paris climate aim 'still achievable' (19 Sep 2017)

more »

 

SF Gate

 

Bay Area News (7 Jan 2012)

 

City Insider (11 Feb 2012)

 

Crime Scene (13 Feb 2012)

 

C.W Newius Column (10 Jan 2012)

 

C.W. Nevius Blog (11 Feb 2012)

 

Education News (10 Jan 2012)

 

KALW (11 Feb 2012)

 

Matier and Ross Blog (11 Feb 2012)

 

Premium processing for H-1B visas to resume (18 Sep 2017)

 

Roku expects IPO to raise million (18 Sep 2017)

 

Daily business briefing, Sept. 19: Hulu, Google, Slack (18 Sep 2017)

 

Rolling Stone, once a counterculture bible, put up for sale (18 Sep 2017)

 

Equifax insider trading said to be focus of U.S. criminal probe (18 Sep 2017)

 

Is rising rent a myth? For many, incomes seem to be keeping up (17 Sep 2017)

more »

 


Site feed Updated: 2017-Sep-19 06:00