The result of first ever Psychem's Chinese Essay Competition was being announced today. The topic selected for this essay competition is a Chinese old saying "Zhi Da Cai Shu, Yan Gao Shou Di", meaning someone with great ambitious but lacking of talent or overconfidence.
Congratulations to our two winners!
First Place - Jacky Li
Second Place - Lisa Chai
Auditor
EPA Proposed Conditional Registration of Nanosilver Pesticide
2010-8-30
EPA is proposing to conditionally register a pesticide product containing nanosilver as a new active ingredient for a period of 4 years. The antimicrobial pesticide product, HeiQ AGS-20, is a silver-based product that is proposed for use as a preservative for textiles. Under its new policy concerning public involvement in registrations, EPA is providing a 30-day opportunity for public comments on the proposed registration. Public comments will be accepted until September 11, 2010.
As a condition of registration, EPA is proposing to require additional product chemistry, toxicology, exposure, and environmental data. The Agency will evaluate these data as they are submitted during the period of the conditional registration to confirm the product will not cause unreasonable adverse effects to human health and the environment.
The data requirements are based in large part on a November 2009, independent consultation EPA held with the FIFRA Scientific Advisory Panel(SAP).In its final report,(http://www.epa.gov/scipoly/sap/meetings/2009/november/110309ameetingminutes.pdf), the SAP addressed a number of questions associated with assessing the hazard of and exposure to nanosilver and other nanoscale metal-based pesticides. EPA is closely following the scientific recommendation from the SAP.
By Lisa
A New Generation of Pesticides Nitenpyram
2010-8-30
Nitenpyram is a new generation of insecticide used in agriculture and veterinary medicine to kill insect external parasites of livestock and pets. It has good performance, with reliable technology, raw materials and good prospects, but until the end of 2009 domestic production capacity is only 1,000 tons/year, which still unable to meet domestic demand, the status of domestic pesticide production deserves more attention.
We should speed up Nitenpyram similar products research and development, such as Clothianidin Lin, Thiamethoxam, Thiophene insects amine, Furosemide insects amine, chlorine and other insects morpholine.
According to the current domestic production and market demand, there are some recommendations for new suppliers: First of all, constantly promote Chinese pesticide production and application upgrades; Secondly, speed up high-level nitenpyram development in order to meet domestic market demand, on the other hand, develop the downstream of neonicotinoid pesticides series; Thirdly, synthetic route optimization, focus on 2 - chloro -5 - chloromethyl pyridine and nitro oxide (or nitro-vinyl) materials such as route selection, to further reduce production costs of raw materials; Fourth, to speed up nitenpyram similar products research and development, such as clothianidin, thiamethoxam, thiophene insects amine, furosemide insects amine, chlorine and other insects morpholine. Finally, to meet the needs of the domestic market, while strengthening the international market expansion.
