#lake:

[rastronomicals]

12:31 AM EDT October 12, 2024:

Emerson, Lake & Palmer - "Jerusalem" From the album Brain Salad Surgery (November 19, 1973)

Last song scrobbled from iTunes at Last.fm

File under:    Albums named after songs that aren't even on them     

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[jcmarchi]

New approach to monitoring freshwater quality can identify sources of pollution, and predict their effects - Technology Org

New Post has been published on https://thedigitalinsider.com/new-approach-to-monitoring-freshwater-quality-can-identify-sources-of-pollution-and-predict-their-effects-technology-org/

New approach to monitoring freshwater quality can identify sources of pollution, and predict their effects - Technology Org

Analysing the diversity of organic compounds dissolved in freshwater provides a reliable measure of ecosystem health, say scientists.

According to scientists at the University of Cambridge and Trent University, Canada, the source of pollutants in rivers and freshwater lakes can now be identified using a comprehensive new water quality analysis.

Microparticles from car tyres, pesticides from farmers’ fields, and toxins from harmful algal blooms are just some of the organic chemicals that can be detected using the new approach, which also indicates the impact these chemicals are likely to have in a particular river or lake.

Importantly, the approach can also point to the origin of specific organic matter dissolved in the water, because it has a distinct composition depending on its source.

The approach uses a technique called high-resolution mass spectrometry to analyse water samples: within an hour this provides a comprehensive overview of all the organic molecules present.

Water quality is strongly determined by the diversity of organic matter dissolved in it – termed ‘chemodiversity.’ The scientists say that the thousands of different dissolved organic compounds can keep freshwater ecosystems healthy, or contribute to their decline, depending on the mixture present.

The paper is published today in the journal Science.

“Traditional approaches to monitoring water quality involve taking lots of different measurements with many devices, which takes a lot of time. Our technique is a very simple way to get a comprehensive overview of what’s going on in a particular river or lake,” said Jérémy Fonvielle, a researcher in the University of Cambridge’s Departments of Plant Sciences and Biochemistry, and co-author of the paper.

To understand what drives this chemodiversity, the team reviewed studies of dissolved organic matter in freshwater samples from rivers and lakes across Europe and northern Canada.

For example, water analysis of Lake Erie in Canada revealed high levels of phosphorus pollution. By looking at the composition of individual molecules in the water sample, researchers identified agricultural activities as the source of this pollution, rather than wastewater effluent. 

“Whereas before, we could measure the amount of organic nitrogen or phosphorus pollution in a river, we couldn’t really identify where pollution was coming from. With our new approach we can use the unique molecular fingerprint of different sources of pollution in freshwater to identify their source,” said Dr Andrew Tanentzap at Trent University School of the Environment, co-author of the report.

Traditional approaches involve separately measuring many indicators of ecosystem health, such as the level of organic nutrients or particular pollutants like nitrogen. These can indicate the condition of the water, but not why this state has arisen.

Dissolved organic matter is one of the most complex mixtures on Earth. It consists of thousands of individual molecules, each with their own unique properties. This matter influences many processes in rivers and lakes, including nutrient cycling, carbon storage, light absorption, and food web interactions – which together determine ecosystem function.

Sources of dissolved organic matter in freshwater include urban runoff, agricultural runoff, aerosols and wildfires.

“It’s possible to monitor the health of freshwater through the diversity of compounds that are present. Our approach can, and is, being rolled out across the UK,” said Tanentzap.

Fonvielle will now apply this technique to analysing water samples from farmland drainage ditches in the Fens, as part of a project run by the University of Cambridge’s Centre for Landscape Regeneration to understand freshwater health in this agricultural landscape.

Source: Cambridge University

You can offer your link to a page which is relevant to the topic of this post.

[longreads]

How Concerned Citizens Drove a Neo-Nazi Out of Rural Maine

Christopher Pohlhaus planned to build a fascist training compound in the woods of rural Maine. The local journalists, veterans, lumberjacks, and policymakers weren't having it.

Pohlhaus, 37, is a former U.S. marine, an itinerant tattoo artist, and a hardcore white-supremacist influencer. He is loud and hostile, and proud to be both. His voice is pitched surprisingly high, and he has a slight Southern drawl. He has a large body and small bald head; a blue-black tattoo crawls up the right side of his face, from his chin to his forehead. Over the years, Pohlhaus has collected thousands of social media followers, who know him by his nickname: Hammer.

Hammer had been living in Texas for a few years when, in March 2022, he bought the land in Maine. He told his followers that he was going to use it to build a haven, operational center, and training ground for white supremacists.

Check out our excerpt of The Atavist’s latest blockbuster story. 

[389]

PORTO ROCHA

[nanaluvbug]

🧀🥪🌶️🥭 The Ravening War portraits  🧀🥪🌶️🥭

patreon * twitch * shop  

[ID: a series of digitally illustrated portraits showing - top left to bottom right - Bishop Raphaniel Charlock (an old radish man with a big red head and large white eyebrows & a scraggly beard. he wears green and gold robes with symbols of the bulb and he smirks at the viewer) Karna Solara (a skinny young chili pepper woman with wavy green hair, freckled light green skin with red blooms on her cheeks. she wears a chili pepper hood lined with small pepper seeds and stares cagily ahead) Thane Delissandro Katzon (a muscular young beef man with bright pinkish skin with small skin variations to resemble pastrami and dark burgundy hair. he wears a bread headress with a swirl of rye covering his ears and he looks ahead, optimistic and determined) Queen Amangeaux Epicée du Peche (a bright mango woman with orange skin, big red hair adorned with a green laurel, and sparkling green/gold makeup. she wears large gold hoop earrings and a high leafy collar) and Colin Provolone (a scraggly cheese man with waxy yellow skin and dark slicked back hair and patchy dark facial hair. he wears a muted, ratty blue bandana around his neck and raises a scarred brow at the viewer with a smirk) End ID.)

[70sscifiart]

One of my favorites by Paul Lehr, used as a 1971 cover to "Earth Abides," by George R. Stewart. It's also in my upcoming art book!

[taizooo]

もともとは10年ほど前にTumblrにすごくハマっていて。いろんな人をフォローしたらかっこいい写真や色が洪水のように出てきて、もう自分で絵を描かなくて良いじゃん、ってなったんです。それで何年も画像を集めていって、そこで集まった色のイメージやモチーフ、レンズの距離感など画面構成を抽象化して、いまの感覚にアウトプットしています。画像の持つ情報量というものが作品の影響になっていますね。

映画『きみの色』山田尚子監督×はくいきしろい対談。嫉妬し合うふたりが語る、色と光の表現｜Tokyo Art Beat

[layla-keating]

#thistension

XO, KITTY — 1.09 “SNAFU”

[nevver]

No one wants to be here and no one wants to leave, Dave Smith (because)

[foodffs]

Noodles with Lamb Sauce (Laghman, 新疆拌面) Xinjiang laghman features chewy noodles served with a bold and rich lamb and tomato sauce that is bursting with flavor.

Recipe: https://omnivorescookbook.com/recipes/uyghur-style-noodles-with-lamb-sauce

[rastronomicals]

6:03 AM EST February 6, 2024:

Emerson, Lake & Palmer - "Toccata" From the album Brain Salad Surgery (November 19, 1973)

Last song scrobbled from iTunes at Last.fm

File under:    Albums named after songs that aren't even on them     

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[lesserknownbots]

CJ from Hello World (MSPFA) by phasedsun?

[389]

PORTO ROCHA

[theroyalweekly]

HRH The Princess of Wales in Southport today, on her first engagement since completing chemotherapy. It’s so good to see her!❤️ --

[shitakeo33]

よく「発明は1人でできる。製品化には10人かかる。量産化には100人かかる」とも言われますが、実際に、私はネオジム磁石を1人で発明しました。製品化、量産化については住友特殊金属の仲間たちと一緒に、短期間のうちに成功させました。82年に発明し、83年から生産が始まったのですから、非常に早いです。そしてネオジム磁石は、ハードディスクのＶＣＭ(ボイスコイルモーター)の部品などの電子機器を主な用途として大歓迎を受け、生産量も年々倍増して、2000年には世界で1万トンを超えました。

世界最強「ネオジム磁石はこうして見つけた」（佐川眞人 氏 ／ インターメタリックス株式会社 代表取締役社長） | Science Portal - 科学技術の最新情報サイト「サイエンスポータル」