CLASSIFIEDS ONLY THB 2,500 + VAT FOR 3 LANGUAGES The Phuket News Kata Rocks The Phuket News
The Phuket News Phuket News
The Phuket News Phuket | Thailand | World | Business | Q&A | Weird World XML, RSS, Feed
The Phuket News The Phuket News
The Phuket News

Patong wastewater crisis may end long-term marine life reproduction, says expert

PHUKET: After two weeks of inspecting and sampling the marine life and soil at Patong beaches, a lecturer at the Faculty of Technology and Environment of the Prince of Songkla University has revealed that although there are no serious short-term effects of untreated wastewater pollution on bleached coral, she predicts all seabed-spawning marine life at Patong Bay may die out this year.

environment, marine, patong, pollution,

Shela Riva

Thursday 8 March 2018, 06:05PM

“The sulphide levels are very, very high, as is the organic matter level. I am still waiting for results on heavy metals which should come tomorrow (Mar 9), and the pH level is quite neutral,” Dr Vipawee Dummee told The Phuket News today (Mar 8).

“The black muddiness level has not changed at all since the release of the wastewater into the bay two weeks ago,” she noted.

For levels of organic matter, we compared South Patong, which is Tri Trang, to Northern Patong. The organic matter of Tri Trang was 2-6 times higher than that of northern Patong.

Sulphide at Northern Patong was not detected (below 1 milligram per kilogram) while South Patong has a value of 3-17 mg/kg, which is very high, indicating that there is organic spoilage on the seafloor,” she said.

Wastewater, which contains settleable solids, fine particles and organic matter, which is especially fiber from human manure, becomes a mud-like sediment.

“This muddy coating does not get washed away and does not dissolve in water. We do not know whether maybe the upcoming monsoon season will wash it away,” she added.

Also, due to chemicals in wastewater from municipalities such as washing excrement and so on, including nitrogen and phosphorous, which are the same in fertilisers, goes into natural water and causes algae blooms which float on top of the water. This has occurred at Patong several times before.

But when the nitrogen and phosphorus mix with the sediment which has sunken on the seafloor, it will cause the growth of blue and green algae which covers the sea floor.

Eggs or larvae need to settle on the seafloor, such as prawns, crabs and coral,” Dr Vipawee explained.

“The algae will die and decompose but it will continue to grow back. It is expected that within this year, many populations of sea species will be rendered unable to reproduce due to algae covering the entire seabed.

“The result depends on the rate of oxygen that penetrates into the seafloor. Oxygen reduces the amount of sulphide.

“Organic matter will be decomposed by bacteria, and if there is oxygen, it has no effect. but if there is not enough oxygen, organic matter will turn into sulphide, which is toxic,” she explained.

The mud layer is the barrier, it blocks oxygen at the top.

“In the short term, there is no noticeable effect from the untreated sewage. There has been some coral bleaching, but right now the coral is already beginning to recover, so there is no sufficient damage,” said Dr Vipawee,

On Feb 23 Dr Vipawee told The Phuket News that the soft corals, which are Mushroom Leather corals or Sarcophyton sp, covering an area of about one rai were being damaged. (See story here).

“The bleaching is starting to occur when small parts of the raw sewage drop onto the corals. It is blenching right now,” she had said.

Dr Vipawee updated The Phuket News that this morning (Mar 8), the Mushroom Leather Corals are already “doing better”.

“We are at ease with the short term effects. There are no surprises for now. But it is the long term effect that could be dangerous to the marine life.

“Many people are unaware that Patong Bay has an abundant marine life, equal to around Koh Khai for example. There is this notion that Patong Bay is just rocks and sand, that is wrong. There is a lot of life. We need to look after it better.

“For example today, we discovered that there is a new population of hundreds of giant clams in Patong Bay,” she noted.

“These clams were not previously thought to not exist in this area any more. They are able to close their shell when there is harmful matter in the water and survive. The tide moves the wastewater away, and then they re-open.”



The Phuket News
The Phuket News
Comment on this story
* Please login to comment. If you do not have an account please register below by simply entering a username, password and email address. You can still leave your comment below at the same time.
Comments Here:

Comments Left: Characters
E-mail: (No Hotmail, Live, MSN and Outlook accepted at this time)
   => Forget password?

vegasbaby | 10 March 2018 - 20:50:05

A very polite and intelligent way to say that Patong has turned into a sh**hole.

The Phuket News
Matches 1 result(s)
The Phuket News
The Phuket News
The Phuket News
The Phuket News The Phuket News The Phuket News
The Phuket News
Share this
The Phuket News
Have a news tip-off? Click here
The Phuket News
Related stories
The Phuket News
Phuket community

Recent Comments

Phuket Governor faces Chinese envoys over tourist safety, lifeguards

"Officials work hard on enforcing the rules for tourists’ safety, on the road and in the sea,” Gov Norraphat said. Typical head-in-the-sand r...(Read More)

Phuket Governor faces Chinese envoys over tourist safety, lifeguards

Akin to talking to a brick wall, the independent assessment would have been scathing, Thai beauracrats quibbling over who gets what from the budget is...(Read More)

B140mn CCTV project punted to support Phuket ‘Smart City’ lifeguards

We must understand that Thai especially in Phuket will just sit in an office with aircon and watch tv (CCTV).And think how can they scam and cheat mor...(Read More)

B140mn CCTV project punted to support Phuket ‘Smart City’ lifeguards

Pathetic. If the authorities spent even a fraction of the proposed B140m on a proper budget for lifeguards then problems could be solved. Instead penn...(Read More)

B140mn CCTV project punted to support Phuket ‘Smart City’ lifeguards

Also note that the tower, during patrol hours, is always manned, with lifeguards patrolling the beach....NOt sitting around on their arse....(Read More)

B140mn CCTV project punted to support Phuket ‘Smart City’ lifeguards

CCTV camera do not replace eyes on the beach, this is just another example of Thailand believing technology can replace people, eg, the so called safe...(Read More)

Thai women ‘married’ by Indian gangsters

Sorry but this seems to indicate the two Thai "officials" who forged the documents and charged for the "service" are both still em...(Read More)

B140mn CCTV project punted to support Phuket ‘Smart City’ lifeguards

boondoggle(noun):work or activity that is wasteful or pointless but gives the appearance of having value....(Read More)

Court rules unregistered properties rented on Airbnb illegal

AIRBNB have changed their T&C, so they can now reveal the full details inside any AIRBNB account to any official regulatory body that asks, withou...(Read More)

The Phuket News
Weird World
The Phuket News PHUKET LIFE
Phuket Arts
Phuket Community
Phuket Culture
Phuket Dining
Phuket Education
Phuket Entertainment
Phuket Environment
Phuket Health
Phuket People
Phuket Technology
Phuket Travel
World Entertainment
Photo Galleries
The Phuket News PHUKET SPORT
Phuket Buy and Sell
Phuket Jobs
Phuket Property
Phuket Cars and Boats
Phuket Community
Phuket Services
The Phuket News The Phuket News PHUKET EVENTS
Phuket Event listings
Phuket Event calendar
Buy Tickets
Phuket Bars, pubs and clubs
Phuket Hotels and villas
Phuket Restaurants
Phuket Yellow Pages
The Phuket News BARGAINS
The Phuket News ABOUT US
The Company
Distribution points
Advertise with us
Pay for advert
Contact us
Content Google Map
Site map
Australian Visa Services
Currency - The Phuket News   Weather Report - The Phuket News   Surf Report - The Phuket News
LinkedIn - The Phuket News   Twitter - The Phuket News   YouTube - The Phuket News   Facebook - The Phuket News
Copyright © 2018 Class Act Media. All rights reserved. | Website usage terms and conditions | Privacy and Confidentiality Statement.