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Feast Your Eyes on this Star-Forming Region, Thanks to the JWST

A JWST image of a nearby star-forming region highlights its intricate structure. Can it also tell us something about the Cosmic Noon?

Margaret-meixner , Pahs , A-pagan-stsc , Universities-space-research-association , European-space-agency , James-webb-space-telescope , Mid-infrared-instrument , Small-magellanic-cloud , Cosmic-noon- , Big-bang , Universities-space-research , Milky-way

Disaster Recovery Will Be Hard In Maui. Toxic Waste Makes It Harder

People in Maui face a wildfire recovery and a complex environmental justice landscape. Toxic chemicals left behind from the fires complicate cleanup.

Hawaii , United-states , Hawaiians , Leila-darwish , Earth-repair , Grassroots-guide , Healing-toxic , Damaged-landscapes , Hawaii-climate-change-portal , Pahs , Lahaina , Maui

CHEMICALS LIST: Toxic ingredients in cosmetics and personal care products

Heavy metals, like aluminum, arsenic, calcium, chromium, iron, lead, mercury and zinc have been found in a wide variety of personal care products, including eye drops, eyeliners, foundations, [...]

Canada , United-kingdom , California , United-states , British , Iris-rubin , Stacey-steinmetz , Robyn-gymrek , Liza-pruett , Philippa-darbre , Health-canada , International-journal-of-toxicology

Automatic GC-FID solution for monitoring SVOCs, VOCs and PAHs in ambient air

Feb 23 2021 Read 448 Times
The fully automatic airmoVOC C6-C20+ auto-GC-FID analyser is specifically designed to carry out the measurement of hydrocarbons from C6 to higher than C25 (linear alcanes) with a sensitivity in the range of low ppt (ng/m3).
This highly regarded instrument from
Chromatotec measures naphthalene, 2-methyl-naphtalene, 1-methyl-naphtalene, acenaphthene, acenaphthylene, fluorene, phenanthrene and anthracene as standard. The aimoVOC C6-C20+ was also recently used for benzo(a)pyrene analysis. It has already been deployed in various French reference institutes and universities to monitor PAHs at industrial sites, tropical forests and sites under decontamination.
When coupled with Quadrupole MS, any unexpected or unknown compounds are automatically identified thanks to the internal NIST library embedded in the system’s internal computer. With detection limit as low as 1 ppt for benzene or naphthalene the system can measure gaseous PAHs in ambient air in continue up to fluorene and linear alcanes up to N-Hexadecane. The instrument is designed to avoid the risk of contamination caused by other molecules that may be present in the sample. An integrated, internal calibration system is used to validate the data and to ensure analytical system is operating with stability. This cylinder free solution includes embedded gas generators and calibration controlled by GC in rack or wall mounted box.

France , French , Chromatotec-vistachrom-software , Vistachrom-software , Instrument , Internal , System , Fluorene , Alcanes , Naphtalene , Methyl

Detailed text transcripts for TV channel - MSNBC - 20151026:17:44:00

it also creates other things called pahs which are compounds known to change or mutate dna which can theoretically increase your risk of cancer. >> does this mean we have to stop eating red meat all together? that 71 pounds figure is red meat, not processed red meat. is this a moderation tip? >> yeah. there's two different proclamations coming out. one is for processed. they gave that the worst designation and the other was red meat which they softened and said probably cause. probably cause doesn't mean it definitely does cause. it means that we know there might be some things in red meat that when cooked, for example, here we will talk about preparing the food, preparing the red meat, a lot of the risk is associated with how it is prepared. that is, do you grill at very high temperatures for too long of a period of time, do you eat the charred portions of the meat. this is not new stuff. >> yes. of course. it's good. >> but the association there for

Things , Cancer , Risk , Compounds , Eating-red-meat , Figure , Dna , Pahs , 71 , Red-meat , Other , One

Detailed text transcripts for TV channel - MSNBC - 20120421:12:49:00

it contains volatile organic compounds. it contains a group of chemicals called pahs that are in duration and amount of exposure deadly to life forms. deadly to humans. deadly to sea life. deadly to plant life. and when you add to that the 2 million gallons of chemical dispersantç applied which saiso made of toxins, dr. james diaz, one of the many doctors i interviewed for my piece, a toxic gumbo to which they've been exposed. so that oil did not magically disappear. it's still on the bottom of the gulf. it's still in the water.

Declines , Group , Humans , Amount , Sea-life , Chemicals , Exposure , Compounds , Life-forms , Pahs , One , Dr

Detailed text transcripts for TV channel - FOXNEWS - 20100502:20:55:00

challenges is the composition of the oil. try to explain in layman's terms the changes it goes through the process, what happens when it does go into the water? >> sure. as it hits the water, it's an alphabet soup, linear chain, aromatic ring carbons, they are attracted readily to particles including the sediments on the sea floor and marshes and particles in the water. there is great concern over what are called pahs. these will have the long lasting impact with respect to clinging to particles. they can last well over a decade in sediment environments. they will be a force of contamination to the food chains for that period. >> juliet: when you are talking about that, what specifically clinging on to? >> especially to organic

Oil , Water , Process , Challenges , Composition , Layman , Particles , Linear-chain , Sea-floor , Sediments , Alphabet-soup , Marshes