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Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, sometimes called a red tide in marine environments, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to ...
The general formula is R 2 C(OH)CN, where R is H, alkyl, or aryl. Cyanohydrins are industrially important precursors to carboxylic acids and some amino acids . Cyanohydrins can be formed by the cyanohydrin reaction , which involves treating a ketone or an aldehyde with hydrogen cyanide (HCN) in the presence of excess amounts of sodium cyanide ...
Incapacitating agent is a chemical or biological agent which renders a person unable to harm themselves or others, regardless of consciousness. [1]Lethal agents are primarily intended to kill, but incapacitating agents can also kill if administered in a potent enough dose, or in certain scenarios.
operation [1]. Of those there are eight in the United States (US) [2]. In 2003 the EPA reported in the Federal Register that on average approximately seven tons of mercury were missing from each plant in the year 2000 [3]. These chlor-alkali plants have an average of fifty-six cells, each containing as much as 8,000 pounds of mercury [4] and,
2. Read Part One and Part Two as preparation for your workshop, perhaps making notes as you read. When you've finished, set aside three hours and write your answers to the questions in Part Three. Whatever your choice, enjoy the journey! THE TURNING POINT The idea started on New Year’s Day in 1980, when my boyfriend (now my
In 2020, the National Institute on Drug Abuse released a research report which supported allegations that marijuana is a "gateway" [3] to more dangerous substance use; one of the peer-reviewed papers cited in the report claims that while "some studies have found that use of legal drugs or cannabis are not a requirement for the progression to ...
The Comprehensive Dangerous Drugs Act of 2002 obliges mandatory drug testing for specific situations such as firearms license applications, employment, and schooling. It also mandates the devising of two testing methods—a screening test, and a confirmatory test to be performed if the former yields a presumptive positive result. [1]
Adults and children are igniting their own fireworks, but the “oohs” and “aahs” quickly turned to agony and a trip to the emergency room for some. This type of firework causes the most ...