Nanotechnology and the Environment - Chapter 2 pptx

... Applications 23 2. 4.1 Titanium Dioxide 25 2. 4 .2 Zero -Valent I ron 25 2. 4.3 Silver 26 2. 4.4 Carbon Black 27 2. 4.5 Carbon Nanotubes 28 2. 4.6 Fullerenes 29 2. 5 Summary 30 References 31 © 20 09 by Taylor ... nanomateri- alstoillustratevariousaspectsofnanotechnology.Unlessotherwisenoted,product informationinthischapteroriginatedfromtheNanotechnologyConsumerProducts Invento...

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... and updates [5–7]. 7.0 × 10 8 y 23 1  25 h 23 5 U 23 1 Pa 22 7 Ac 22 y (99%) 4 s 11 d 19 d 21 9 Rn 22 3 Ra 21 5 Po 22 7  21 1 Pb 8 × 10 −4 s 21 1 Bi 20 7 Tl 20 7 Pb 36 m 2. 1 m 4.8 m 22 3 Fr 22 y (1%) 22 ... m 23 8 U 23 4 Pa 23 4 U 2. 4 × 10 5 y 3.8 d 1.6 × 10 3 y 7.7 × 10 4 y 22 2 Rn 22 6 Ra 21 8 Po 23 0  21 4 Pb 3 m 21 4 Bi 21 4 Po 21 0 Pb 20 m 6.4 × 10 −...

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... Bq/kg) Saito and Jacob [63] Beck et al. [64] Clouvas et al. [65] Quindos et al. [49] 23 2 Th series 22 8 Ac 0 .22 0 .28 0.19 0 .21 21 2 Bi 0. 027 0. 021 0. 024 0. 025 20 8 Tl 0.33 0. 32 0.30 0. 32 2 12 Pb 0. 028 ... unsupported 21 0 Pb depth distributions for soil cores from the study catchment [59]. 2 6 10 14 18 22 26 30 01 020 304050607080 2 6 10 14 18 22 26 30 2...

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... 6, 20 06 9:53 AM © 20 07 by Taylor & Francis Group, LLC Illicit Trafficking of Nuclear and Other Radioactive Materials 341 • NORMs: 40 K, 22 6 Ra, 23 2 Th, and 23 8 U. • Nuclear materials: 23 3 U, ... Requirements, IAEA Safety Standards Series no. GS-R -2 , IAEA, Vienna, 20 02. 26 . IAEA, International Basic Safety Standards for Protection Against Ionizing Radi- ation and fo...

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... about Nanotechnology: Risks, Benets and Trust. http://www2.chass.ncsu.edu/cobb/me/past %20 articles %2 0and% 20 working %20 papers/Public %20 Perceptions %20 about %2 0Nanotechnology% 2 0-% 20 Ri sk s, %20 Benets %2 0and% 20 Trust.pdf ... 20 01 20 02 2003 20 04 20 05 20 06 20 07 1997 1998 1999 20 00 20 01 20 02 2003 20 04 20 05 20 06 20 07 1400 120 0 1000 800...

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... concern is the same as that for the bulk material and • • • • © 20 09 by Taylor & Francis Group, LLC 34 Nanotechnology and the Environment makers. The manufacturing process must control both the ... the nanomaterial during further processing or dis- posal,animportantquestionisthestrengthofthebonding.Thatis,howeasilywill thenanomaterialsseparatefromasubstrateandthenpot...

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... CAA,§1 12( b) (2) ,42U.S.C.§74 12( b) (2) . 37. CAA,§1 12( b)(3)(B),42U.S.C.§74 12( b)(3)(B). 38. CAA,§1 12( d) (2) ,42U.S.C.§74 12( d) (2) . 39. 42U.S.C.§74 12( d)(5). 40. CAA§1 12( f) (2) ,42U.S.C.§74 12( f) (2) . 41. 42U.S.C.§74 12( r)(1). 42. ... Memorandum toHonorableMayorandMembersoftheCityCouncil(CEACRecommendation),p. 2- 3 . http://www.ci.berkeley.ca.us/citycouncil /20 06citycounci...

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... two measurementsforthe50-nmparticlesandfourforthe100-nmsamplefelloutside threestandarddeviationsofthemean.MeasurementstakenbyTEMforthe30-nm and 100-nm particles were signicantly below the expected diameters and ... of Standards and Technology (NIST) In early 20 06, the National Institute of Standards and Technology (NIST) launched a newstate-of -the- artCenterforNanoscaleScience...

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... stoichiometric analysisasaresolutionof±10pmol.(b)Projectedconcentrationoffullereneinthecreekbelow atheoreticalcompliancelimitof1µg/Loffullereneunder250-nminapparentdiameter. © 20 09 by Taylor & Francis Group, LLC 124 Nanotechnology and the Environment 6.1 INTRODUCTION Theenvironmentalfateandtransportofagivenchemicalcanusuallybecharac- terizedorpredictedbasedonarelativelysmallset...

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... contact with water. Their r esearch shows that the pH ofthewateraffectstheparticlesizeofthenano-C60,andtheionicstrengthaffects thestabilityofthenano-C60insolution [26 ]. Similarly, multi-walled carbon ... August. 21 .U.S.EnvironmentalProtectionAgency .20 00.TheHistoryofDrinkingWaterTreat- me nt. EPA-816-F-0 0-0 06 (February). 22 .Huang,C.,W.Jiang,andC.Chen .20 04.NanosilicaremovalfromIC...

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