Tiếp tục đọc “Precious Plastic – DIY machines that enable everyone to build a plastic workshop”
Thẻ: Ô nhiễm – Pollution
Gold mining suspected as cause of Cambodian mass poisonings
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- In early May, a mass poisoning event in Chetr Borei district in the Cambodian province of Kratie killed at least 13 people and caused acute levels of sickness for up to 300 more.
- An investigation led by Cambodia’s Minister of Industry and Handicraft Cham Prasidh revealed high levels of cyanide in a nearby river, which is the source of drinking water for communities in the region that were affected by poisoning. However, Prime Minister Hun Sen dismissed the claim, saying the poisoning was caused by rice wine and agricultural chemicals.
Tiếp tục đọc “Gold mining suspected as cause of Cambodian mass poisonings”
Bờ biển đẹp trở thành bãi chứa hàng tấn rác thải
NZ – 07:00 17/06/2018
Suốt nhiều năm, người dân xả thải bừa bãi ra bờ biển làm bãi cát đẹp trở thành nơi chứa rác thải, ô nhiễm nghiêm trọng.
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| Tình trạng ô nhiễm đang diễn ra ở bãi biển thị trấn Phan Rí Cửa (huyện Tuy Phong, Bình Thuận). Tại đây, gần 2 km bãi cát ngập trong các loại rác thải, chất thải. |
Tiếp tục đọc “Bờ biển đẹp trở thành bãi chứa hàng tấn rác thải”
‘Khủng khiếp’, bình quân mỗi người Việt tiêu thụ 0,9-1kg thuốc BVTV/năm
NN – 27/07/2018, 08:42 (GMT+7) Hiện có khoảng 200 doanh nghiệp tham gia sản xuất kinh doanh thuốc BVTV, khoảng 100 nhà máy sản xuất thuốc BVTV và hơn 30 ngàn đại lý buôn bán thuốc BVTV. Đáng chú ý là thực sự chỉ khoảng 15-20 doanh nghiệp chi phối...
Lợi ích nhóm
Theo ông Trương Quốc Tùng – nguyên Phó Chủ tịch Thường trực Hội Khoa học Kỹ thuật Bảo vệ Thực vật (BVTV) Việt Nam, lịch sử dùng thuốc BVTV ở nước ta được bắt đầu ở miền Bắc vào năm 1955. Nó tỏ ra là phương tiện quyết định, nhanh chóng dập tắt các dịch sâu bệnh trên diện rộng. Nếu không có thuốc BVTV nhiều dịch hại cây trồng có thể làm giảm 40-60% năng suất trên diện rộng, cục bộ có thể mất trắng.
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| Vỏ bao thuốc BVTV vứt bừa bãi ở một vùng trồng rau sạch |
Tiếp tục đọc “‘Khủng khiếp’, bình quân mỗi người Việt tiêu thụ 0,9-1kg thuốc BVTV/năm”
Làm nông nghiệp hữu cơ: Câu chuyện từ nhận thức đến thực tiễn – 5 bài
- Đừng kinh doanh “hữu cơ” trong bóng tối”
- Chi tiết bộ tiêu chuẩn nông nghiệp hữu cơ quốc gia
- Ba cảnh báo lớn nhất về nông nghiệp hữu cơ
- ‘Ông hữu cơ’ Nguyễn Lâm Viên nói về hữu cơ
- Hành trình ngược dòng của Võ Minh Khải với hạt gạo hữu cơ
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Đừng kinh doanh “hữu cơ” trong bóng tối”
TheLEADER Giấc mơ “hữu cơ” nào cũng đáng quý, mặc dù không có giấc mơ nào giống nhau, chỉ có điều chúng ta phải trung thực với những gì có thể làm hay nói cách khác là minh bạch thông tin vườn trồng cũng như sản phẩm để cộng đồng lựa chọn.
Sản phẩm nông nghiệp hữu cơ vẫn còn là giấc mơ của nhiều người. Tiếp tục đọc “Làm nông nghiệp hữu cơ: Câu chuyện từ nhận thức đến thực tiễn – 5 bài”
Nghịch lý ngành xi măng (3 bài)
- Nghịch lý ngành xi măng: Giá xuất khẩu chỉ hơn nửa giá trong nước
- Nghịch lý ngành xi măng: Bán rẻ, đối tác nhập khẩu vẫn chê
- Nghịch lý xi măng!

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Giá xuất khẩu chỉ hơn nửa giá trong nước:
Nghịch lý ngành xi măng
TP – Giá xi măng xuất khẩu chỉ bằng hơn nửa giá bán trong nước, chỉ giải quyết tình trạng tồn kho; ngân sách không thu được gì, thậm chí mất tài nguyên, gây ô nhiễm.
10 Rivers Contribute Most of the Plastic in the Oceans
The 10 rivers that carry 93 percent of that trash are the Yangtze, Yellow, Hai, Pearl, Amur, Mekong, Indus and Ganges Delta in Asia, and the Niger and Nile in Africa. The Yangtze alone dumps up to an estimated 1.5 million metric tons of plastic waste into the Yellow Sea.

Credit: Amanda Montañez; Source: “Export of Plastic Debris by Rivers into the Sea,” by Christian Schmidt et al., in Environmental Science & Technology, Vol. 51, No. 21; November 7, 2017
Our seas are choking on plastic. A staggering eight million metric tons wind up in oceans every year, and unraveling exactly how it gets there is critical. A recent study estimates that more than a quarter of all that waste could be pouring in from just 10 rivers, eight of them in Asia.
“Rivers carry trash over long distances and connect nearly all land surfaces with the oceans,” making them a major battleground in the fight against sea pollution, explains Christian Schmidt, a hydrogeologist at the Helmholtz Center for Environmental Research in Leipzig, Germany.
Tiếp tục đọc “10 Rivers Contribute Most of the Plastic in the Oceans”
Polluted waste water causes 2,000 rivers to die
07:21 | 22/05/2018
VietNamNet Bridge – More than 2,000 large rivers with 10 kilometers or longer in Vietnam are being threatened by untreated waste water from households, industrial production and craft villages.

Fish have died in Hai Duong province
The people farming fish in cages on Luc Dau, Kinh Thay and Thai Binh in Hai Duong province have shouted for help as their fish have died en masse because of polluted waste water discharged into rivers. Tiếp tục đọc “Polluted waste water causes 2,000 rivers to die”
The Challenge of Agricultural Pollution : Evidence from China, Vietnam, and the Philippines

Citation
Evidence mounts for Alzheimer’s, suicide risks among youth in polluted cities
Date: April 13, 2018
Source: The University of Montana
Summary: Researchers have published a new study that reveals increased risks for Alzheimer’s and suicide among children and young adults living in polluted megacities.

A University of Montana researcher and her collaborators have published a new study that reveals increased risks for Alzheimer’s and suicide among children and young adults living in polluted megacities.
Dr. Lilian Calderón-Garcidueñas said her group studied 203 autopsies of Mexico City residents ranging in age from 11 months to 40 years. Metropolitan Mexico City is home to 24 million people exposed daily to concentrations of fine particulate matter and ozone above U.S. Environmental Protection Agency standards. The researchers tracked two abnormal proteins that indicate development of Alzheimer’s, and they detected the early stages of the disease in babies less than a year old. Tiếp tục đọc “Evidence mounts for Alzheimer’s, suicide risks among youth in polluted cities”
Petroleum company caught dumping untreated waste in protected Hanoi forest

Locals say the company has been trying to cover up the evidence and switched to operating at night following complaints.
A petroleum company has been caught red-handed dumping untreated waste in a protected forest on the outskirts of Hanoi.
Residents of Soc Son District started noticing lines of trucks queuing up to dump tons of waste shortly before the Lunar New Year (Tet).
Tiếp tục đọc “Petroleum company caught dumping untreated waste in protected Hanoi forest”
Nhuệ-Đáy river basin polluted despite clean-up efforts
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| A part of the Nhuệ River running through Thanh Trì District’ Hữu Hòa and Tả Thanh Oai communes. — VNA/VNS Photo Trọng Đạt |
Lê Tuấn Định, deputy head of the department, said the level of pollution in the water had steadily worsened and that many stretches of the river were seriously polluted, especially during the dry season.
He said, the water quality in the Nhuệ and Đáy rivers would improve when they received water from the Hồng (Red) River.
However, statistics from the department show that the water level of the Hồng River has been low since 2003. Tiếp tục đọc “Nhuệ-Đáy river basin polluted despite clean-up efforts”
Dangerous levels of untreated waste in water samples
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| Dien Bien Province’s Environmental Police Department reports content of untreated waste in the Hong Diep–Dien Bien Starch JSC’s pond exceeded the national standard dozens of times. — Photo vov.vn |
Local media reported on January 14 and 15 that hundreds of cubic metres of wastewater flowed into the Nam Nua Stream after a waste tank, belonging to a cassava starch-processing factory of Hong Diep–Dien Bien Starch JSC, cracked open, polluting the stream with a foul-smelling dark liquid and killing hundreds of fish. Tiếp tục đọc “Dangerous levels of untreated waste in water samples”
Forty per cent of global e-waste comes from Asia
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scidev.net_[NEW DELHI] Humans generated a staggering 44.7 million metric tonnes of electronic waste (e-waste) in 2016 — the equivalent of 4,500 Eiffel Towers, and five per cent more than the electrical and electronic goods discarded just two years earlier, says a new study.
The trend is set to continue, with volumes of e-waste expected to rise to 52.2 million metric tonnes by 2021. Tiếp tục đọc “Forty per cent of global e-waste comes from Asia”
Plankton decline hits marine food chain
DW_Plankton is the basis for the entire marine food web – and it is under threat. From the Mediterranean to the Pacific, animals have been struggling to survive, due apparently to changes with plankton.
Food chains represent the greatest interdependency within the webs of life. The marine food chain, for instance, is essential for oceans – and depends on plankton. But environmental changes and human activities may be threatening plankton– and therefore all marine animals.
According to a recent study,the biomass of sardines and anchovies has been decreasing at alarming rates in the Mediterranean Sea. At the same time, sea lions are struggling to forage on the coasts of California. Both cases have shed light on how a single food chain element can affect all others.
While it is still unknown whether species will be able to adapt to new conditions, the marine food chain is already experiencing drastic changes – and plankton plays a crucial role across the board.
“If anything happens to the plankton, an immediate cascade effect will take place on the food chain,” Ivan Nagelkerken, a University of Adelaide’s biology professor, told DW.
Building blocks of life
Plankton are tiny aquatic organisms that drift through the sea, forming the basis of the marine food chain.
For plankton, both quantity and quality – in terms of nutrients – affect life up the food chain. Tiếp tục đọc “Plankton decline hits marine food chain”



