中大公布第二批校園環境檢測結果





香港中文大學（中大） 早前委託獨立認可實驗室於不同時間在校園不同地點，抽取空氣、水質及泥土樣本，並送往化驗。大學已收到了第二批校園環境檢測結果。



因應有大學成員對校園可能殘留CS（鄰-氯代苯亞甲基丙二腈）的疑慮，校方已經進一步安排樣本檢測，預計將於二至三星期後收到結果，並盡快公布。



今日（12月12日）公布的第二批校園環境檢測結果包括13個泥土樣本（#1至#12 、S8）以及兩個水樣本（W9、W10）的化驗結果，摘要及參考水平如下﹕



(1) 泥土樣本



表一﹕泥土樣本（#1 至#12）

污染物

測試結果

參考水平

參考文件

二噁英

0.0037至0.0059 毫微克/克

1毫微克/克

香港環保署發出的「按風險釐定的土壤污染整治標準（公園）」

總多氯聯苯

< 0.2毫克/公斤

0.756毫克/公斤

多環芳香烴

< 0.500至2.05毫克/公斤

3.83至10,000毫克/公斤





表二﹕泥土樣本（S8）

污染物

測試結果

參考水平

參考文件

二噁英

0.12 毫微克/克

1毫微克/克

香港環保署發出的「按風險釐定的土壤污染整治標準（公園）」

總氰化物

< 1 毫克/公斤

4,900毫克/公斤

總多氯聯苯

< 0.200毫克/公斤

0.756毫克/公斤

多環芳香烴

< 0.500毫克/公斤

3.83至10,000毫克/公斤





(2) 水樣本



表三﹕水樣本（W9 及 W10）

污染物

測試結果

參考水平

參考文件

二噁英

4.6至4.7 皮克/公升

30皮克/公升

美國國家環境保護局（USEPA）建議的飲用水標準

總氰化物

< 0.05毫克/公升

0.2毫克/公升

總多氯聯苯

< 0.50 微克/公升

0.5 微克/公升

多環芳香烴

< 0.1 微克/公升

0.1 至 0.4 微克/公升





結論



(1) 泥土樣本



化驗結果顯示12個泥土樣本（#1至#12）的二噁英含量遠低於香港環保署在2007年發出的《按風險釐定的土地污染整治標準的使用指引》中「按風險釐定的土壤污染整治標準（公園）」之數值。這表示二噁英在這些泥土（#1至#12）的含量水平並不顯著，化驗結果與距離2號橋較遠位置的泥土樣本 （S1至S7、S9） 相若 （見表一）。





至於總多氯聯苯的化驗結果，所有泥土樣本 （#1 - #12）都遠低於前述由香港環保署發出的使用指引中（公園）標準之總多氯聯苯含量 (0.756毫克/公斤)。（見表一）



關於泥土樣本 (#1 - #12) 中多環芳香烴的含量，全部均低於參考文件中所規定的水平 （見表一）。 至於多環芳香烴中個別的化合物含量，可於此處瀏覽。



一個含有黑色煙熏物質的泥土樣本 （S8），在夏鼎基運動場裡被火燒焦的墊褥附近採集。測試結果顯示二噁英的含量相比其他泥土樣本為高，但仍相等於使用指引中的參考水平大約十分之一。這個略高的數值可能是由燃燒塑膠或墊褥的塑料部分引起。S8的其他測試參數例如總氰化物、總多氯聯苯和多環芳香烴，它們的含量遠低於在相關參考文件所規定的最低數值（見表二）。



(2) 水樣本



兩個水樣本從賽馬會研究生宿舍（一座）採集。化驗結果顯示兩個水樣本（W9 及 W10）中二噁英含量介乎4.6至4.7皮克/升。根據美國國家環境保護局建議的飲用水標準，其水樣本 （W9 & W10）中二噁英含量並不顯著。其他測試參數例如總氰化物、總多氯聯苯和多環芳香烴，它們的含量遠低於在相關參考文件所規定的最低數值 （見表三）。



從上述結論可見，這些污染物在泥土（#1 至 #12、S8）和水（W9 及W10）樣本的含量對健康的危害不顯著。



至於其他測試結果，大學收到後盡快公布。



相關數據可於此處瀏覽。







CUHK Releases the Second Batch of Test Results on Campus Environment



The Chinese University of Hong Kong (CUHK) earlier appointed an independent accredited laboratory to collect air, water and soil samples at various locations and at different times on campus and sent them for testing. The University has just received the second batch of test results.



In addition, in response to the concerns of some University members over the level of CS (2-chlorobenzalmalononitrile) on CUHK campus, the University has arranged to conduct another round of tests. The results will be announced as soon as they are received in 2-3 weeks’ time.



Here is the summary of the second batch of test results including 13 soil samples (#1-#12 & S8) and 2 water samples (W9 & W10) compared with the guidance notes/international standards.



(1) Soil samples



Table 1: For soil samples (#1 - #12)

Contaminant

Test results

Reference Level

Reference Document

Dioxins

0.0037-0.0059 ng/g

1 ng/g

Risk-Based Remediation Goals (RBRGs) for Soil – Public Parks, published by Hong Kong Environmental Protection Department

Total PCBs

< 0.2 mg/kg

0.756 mg/kg

PAHs

< 0.500-2.05 mg/kg

3.83-10,000 mg/kg



Table 2﹕For soil sample (S8)

Contaminant

Test results

Reference Level

Reference Document

Dioxins

0.12 ng/g

1 ng/g

Risk-Based Remediation Goals (RBRGs) for Soil – Public Parks, published by Hong Kong Environmental Protection Department

Total Cyanide

< 1 mg/kg

4,900 mg/kg

Total PCBs

< 0.200 mg/kg

0.756 mg/kg

PAHs

< 0.500 mg/kg

3.83-10,000mg/kg



(2) Water samples



Table 3: For water samples (W9 & W10)

Contaminant

Test results

Reference Level

Reference Document

Dioxins

4.6-4.7 pg/L

30 pg/L

Drinking Water Standards from USEPA

Total Cyanide

< 0.05 mg/L

0.2 mg/L

Total PCBs

< 0.50 µg/L

0.5 µg/L

PAHs

< 0.1 µg/L

0.1-0.4 µg/L



Conclusion



(1) Soil samples



Among the 12 soil samples (#1-#12), the dioxins (I-TEQ) are well below the Risk-Based Remediation Goals (RBRGs) of dioxins in soil (I-TEQ) for public parks as quoted in the Guidance Manual for Use of Risk-Based Remediation Goals for Contaminated Land Management published by Hong Kong Environmental Protection Department (HKEPD) in 2007. This indicates that the dioxins (I-TEQ) levels in these soil samples (#1 - #12) are not significant, and the results are comparable to soil samples (S1-S7 & S9) collected in the more distant locations away from No. 2 Bridge (see table 1).



Based on the test results of Total Polychlorinated Biphenyls (PCBs), all soil samples (#1 - #12) are lower than the respective limits of PCBs level (0.756 mg/kg) for public parks cited in the aforementioned Guidance Manual from HKEPD (see table 1).



Regarding the Polycyclic Aromatic Hydrocarbons (PAHs) levels for these soil samples (#1 - #12), all of them are below the level as required by the reference document (see table 1). For the figures of individual PAH compounds, please click here.



A soil sample with black-smoked materials (S8) was collected in the vicinity of the burned mattress in Sir Philip Haddon-Cave Sports Field. The test result of the dioxins (I-TEQ) level is relatively higher than that of other soil samples though it is only about one tenth of the reference level cited in the Guidance Manual. The possible reason for the elevated result may be due to the burning of rubber or plastic components of the mattress. For the other testing parameters such as Total Cyanide, Total Polychlorinated Biphenyls (PCBs) and Polycyclic Aromatic Hydrocarbons (PAHs) for the sample (S8), they are all well lower than their respective limits as required by the related reference documents (see table 2).



(2) Water samples



Two water samples (W9 & W10) had been collected from Jockey Club Postgraduate Hall 1. The test results reveal that the dioxins (I-TEQ) levels for both samples (W9 & W10) are from 4.6 to 4.7 pg/L. In accordance with drinking water standards from United States Environmental Protection Agency (USEPA), the dioxins levels for these water samples (W9 & W10) are not significant. For the other testing parameters such as Total Cyanide, Total Polychlorinated Biphenyls (PCBs) and Polycyclic Aromatic Hydrocarbons (PAHs), they are all much below their respective limits as required by the related reference documents (see table 3).



In view of the aforementioned interpretation, the health hazards of these contaminants from the soil (#1 - #12 & S8) and water (W9 & W10) samples are negligible.



Other test results will be announced as soon as they are available. Related information may be viewed here.

麻煩大家幫忙
留下優秀的一家人

他們來自波多黎各
父母親都是名校約翰霍普金大學的電腦碩士
(Master Degree in Computer Science - Johns Hopkins University at Laurel, MD)
他們著五個孩子，到全世界學習
Diego 17歲 Paula 13 歲 Alonzo 12 歲
Felizi 8 歲 Matteo 6 歲

八月，他們到了台灣
發覺這是一個非常適合的生活環境
有好的醫療、中文學習環境、電腦產業、和超好吃的水果
九月，Diego , Paula, Alonzo進入惠文高中寄讀
他們來了之後，學校形成一個很棒的英語學習情境
台灣學生都被迫用英文跟他們互動

星期五與台北歌德學院簽訂德國「PASCH夥伴學校」時
他們三個和學校弦樂社一起合奏卡農(見影片)
非常非常有教養的一家人

然而他們11月就必須離開台灣
因為他們來台灣的第五天
得到美國總公司的通知
他們收掉波多黎各的公司
爸爸Tommy失業了
所以這幾天，他在台中接一個英文家教
但經濟仍是問題

如果台中的朋友可以提供11月4日前的短期英文、西班牙文家教工作
或是提供長期電腦工程師的工作
麻煩和Tommy聯絡
以下是他的聯絡方式及完整資歷
(願意幫他們申請工作簽證更好)
他們很願意把台灣當成第二個家

PS
覺得政府說要把英文變成第二語言
最棒的方式是吸引國外的學生進入我們的校園
在人才即國力的年代
讓優秀的國際人才留在台灣
如果在台灣就有很好的英語學習環境
我們就不用一窩蜂跑到國外

聯絡TOMMY IRIZARRY-SIKES
Contact Information
Postal: Lane 400, Unit 11, Section 2, Nantun Road, Nantun District, Taichung City, Taiwan 408
Email: tirizar@gmail.com
Phone number: 0908 979 417
LinkedIn Profile: http://pr.linkedin.com/pub/tommy-irizarry/25/16/815

孩子的影片
Diego violin in a quartet:
https://youtu.be/ArkvU8Czmk8?t=37s

Diego violin Doble de Bach:
https://youtu.be/LYvnKwEueyA

Diego plays piano Clair de Lune:
https://youtu.be/CWCQMo5XJEY?t=14s

You can see some other videos in this YouTube channel:
https://www.youtube.com/user/tirizar/videos?reload=9

履歷
Summary of qualifications
Software developer for private industries and government agencies. Proficient web developer using classic ASP code, standard html, CSS and SQL Server for data storage. Web server administrator and SharePoint Power User.
 Android developer
 Certified Ethical Hacker
 Programming / Markup languages: HTML, XML, ASP, PHP, CSS, JavaScript/AJAX/JQuery, experience with Java, C++ and C.
 Mobile development: Java, Android, Android Studio.
 Technologies / Tools: IIS 6.0/7.5, SQL Server, Dreamweaver, Fireworks, Microsoft SharePoint 2007/2010, Microsoft Office suite including InfoPath, Access, Excel, Google Analytics, Google AdSense, Facebook Advertising, Microsoft SharePoint Designer, Inquisite Surveys.
Experience
Since November 2016-current
Enterprise Iron
Principal consultant – Web Developer
 Worked on the redesign efforts of the secure site for an international financial client. Applied responsive design principles using the Bootstrap framework while creating modular, reusable components of the code. Analyzed web page dependencies and identified legacy unused pages in the system.
Since November 2015-current
e-Nabler Corporation
Android developer – Professional Services Contract
 Developed Java code for the eMobilePOS and Tupyx apps for their Android versions.

Since October 2013-November 2014 TEK Systems
Web Developer / Web Master for the Department of Veterans Affairs in DC
 Continued supporting Veteran’s Affairs IT systems, including managing SharePoint 2010 systems and supporting databases. We identified issues with several databases including the management of IIS and SharePoint logs which were consuming many recourses and in a couple of occasions made the systems unavailable.
 Enabled and configured space monitoring tools in the SharePoint server farms.
Since November 2011-September 2013 Centuria Corporation
Web Developer / Web Master for the Department of Veterans Affairs in DC
 Developed a training registration web site that has been tweaked and used multiple times for different registration purposes, including new telephone system training, and scheduling software upgrades of encryption on laptops and upgrades to Apple Mac OS. The system uses a web front end and a SQL back end.
 Performed a routine web server maintenance tasks including monitoring traffic logs, identifying and archiving sites no longer in use, evaluating tools to assist in the management of the web server.
 Administered and migrated the FTP server from Windows 2003 Server / IIS 6 into Windows 2008 R2 Server / IIS 7.5. Configured new sites to support general operations within the VA Intranet.
 Maintained and enhanced legacy sites, modifying forms and reports in needs to be updated. This includes modification and creation of site in the Enterprise Content Management System used at the VA.
 Assisted other team members in various tasks including the creating or modification of surveys in the Inquisite system, and also the migration of some surveys into SharePoint, the modification of an Access application.
December 2001 – August 2011
Systems & System Software Solutions
Web Developer / Web Master for the Department of Veterans Affairs in DC
 Mr. Irizarry developed a web based application for the State Home Per Diem Office, which manages millions of dollars in payments to the state homes, to replace an Access database. The Access database was converted to MS SQL Server database and all data was migrated successfully. He created a web based interface using the standard VA intranet look and feel. He also developed a custom interface for each of the 3 roles (CBO, VAMC and VISN). Tools were built for the administrator to view current reports, view missing reports lists, and configure many parameters in the application. The VAMC report form was heavily automated using jQuery to perform auto calculations, increasing data validation and saving time to the users. After the application was launched users commented frequently about how user friendly is the new interface and about the time savings. Tasks that will take 2 hours to be completed now take 15 minutes. We have close to 12,000 reports in the system.
 There were various requests to the IT office for a web based training registration system of different types. Mr. Irizarry developed a registration system which was later used for the following projects: Take your child to work day, New Telephone system training registration, Laptop Hard Drive encryption software upgrade among others.
 Developed an alternate cascading style sheet for SharePoint 2007, converting the out of the box look and feel to the Department of Veterans Affairs standard website look and feel.
 After one of the VA’s laptops was stolen Mr. Irizarry worked to develop a Risk Assessment web based application. He created an Excel template which management will upload to an FTP server with information and details about remote employee access and the sensibility of the data accessed by those users. He also created VB Scripts to validate those Excel files an upload that information into an MS SQL database. Reports for upper management in Central Office were then created which prompted management to enforce stronger security measures, like hard drives encryption. In total more than 500,000 records were processed for the reports.
 Administration of IIS 6.0 web server and MS SQL Server databases used in our websites.
 Wrote migration scripts to move IIS 6.0 sites into a new IIS 7.5 server
 Designed, developed and maintained multi-tier applications for the Veterans Health Administration. Most of the sites access a MS-SQL Server database, use cascade style sheets and ASP server side processing. The sites were developed using Adobe/Macromedia tools like Fireworks, and Dreamweaver.
 Installed BlackBerry wireless email devices and trained users on the basic device usage.
 Web developer for the Department of Veterans Affairs. Redesigned and modified web pages to make them compliant with the Section 508 guidelines. Tested validation tools that verify if web pages are “Section 508” compliant. Section 508 are guidelines that must be followed by all government agencies and points to which government resources must be make accessible to people with disabilities, i.e. blind, deaf, etc.

November 1999 - December 2001
Compaq Computer Corporation
Consulting Associate II
 Design and develop the XOOB (Xevo out of the box) Web user interface. XOOB uses COM+, ASP, XML, XSL and JavaScript to provide a web user interface to the Xevo Workbench Platform based on the role associated with the user. Development was done using Visual Studio tools, IIS and XMLSpy.
 Develop Active Server Pages for the Helpdesk solution for the PrimusASP project.
 Design and code an ActiveX component that serves as the bridge between the Compaq ASP Framework and the Infranet billing system for Primus. Supported integration with other components of our framework.
 Design, code and troubleshoot software for the Primus ASP (Application Service Provider) project. Software includes a DLL and various VB programs that run as NT Services, which are key components of the Compaq ASP framework.
June 1998 – October 1999
National Security Agency
Computer Scientist
 Mr. Irizarry worked for as a software developer for the TOKENEER project. TOKENEER is a test platform for the integration of smart cards, biometrics (fingerprint, hand, iris and facial recognition) and a public key infrastructure. Development was done on Windows NT workstations using Visual C++ and Visual SourceSafe for source control. Mr. Irizarry used an SDK to capture and match fingerprints against a database of fingerprints. He also created software to created some statistics of “False Accepts and False Reject Rates” of the fingerprint. He also worked with other team members to identify which fingerprints characteristics could affect those rates. He then added error detection functions to the fingerprint recognition software to identify corrupted files of fingerprint images
 Conducted research for methods to add security services to an off-the-shelf computer.
 Developed C code to process fax data on an UltraSparc/SunOS station.
 Wrote software to generate a daily report of traffic load in a telephone switch by analyzing the switch logs.
Education
Certifications:
 Certified Ethical Hacker – 03/28/2014
Master Degree in Computer Science - May, 2001 Johns Hopkin

【畢打街閒人】Bitcoin取代歐元，成新貨幣聯盟？（渾水）

講比特幣呃like之前，先講少少學術東西做引子。香港中文大學常標榜自己有四位諾貝爾得獎學者，兩位是來自科學界的楊振寧和高錕，另外兩位則是經濟學界的James Mirrlees和Robert Mundell。以Robert Mundell為例，他的專有銜頭是「Distinguished Professor-at-Large」，我暫時找不到最合適的中文翻譯，譯做「上神枱」算比較貼切。

上神枱的諾獎教授，有時都要食吓人間煙火，下凡見吓學生，講吓課咁。大約二○一二年左右，確實日子我不太記得，當時被譽為「歐元之父」的Prof. Mundell在中文大學講學，題目是講他拿手的International finance，講歐元這個貨幣聯盟結構。時值希臘危機開始醞釀，那時有一位不修邊幅的小屁孩舉手問問題，大膽問大教授是否依然相信歐盟不會解體，歐元無問題。大教授Mundell誓神劈願講明無問題，小屁孩記憶猶深。當然，我不會承認小屁孩就是我，因為全世界都知道我份人比較低調。

結果，由二○一二年到現在，希臘債務問題發酵成政治主權問題。希臘之外，其他歐豬四國都相繼出現大大小小的債務危機，全世界都在討論德國這個富親戚應不應該接濟一班窮親戚，國際貨幣組織大感頭痛，歐元作為歐洲各國的通用貨幣，正受到史無前例的挑戰。同時，英國現正進入脫歐程序，雖然英國一直沿用本國貨幣，貨幣經濟方面沒有直接影響，但政治多少傷害到歐元的信用（credibility）。本來天下大勢合久必分，分久必合，可惜大教授不諳中文，領悟不到羅貫中的才情。

好啦，這些經濟學學術東西關比特幣咩事？

一般投資者愛把比特幣看成投機工具多於貨幣本質，主力估算其升勢、跌勢，看看有多少投機炒作潛力，務求在音樂椅完之前盡早笠水走人。不過，經濟學者可能會更關心比特幣的貨幣本質多一點。尤其是區塊鏈（Blockchain）是超越前人的概念，因為去中央化、在電子世界記賬等先進發明，令到比特幣可以在各國流通，甚至令人猜想比特幣可能是比歐元更穩定的共同貨幣。

Mundell最廣為人知的理論是Mundell--Fleming model（又稱IS-LM-BoP model），屬於經濟學系大學二年級生必修的模型，模型涵蓋範圍很廣闊，包括商品市場、生產要求市場、貨幣市場和外匯市場等，可謂集各家之大成。一般經濟系大學生，包括我，為了應付考試讀書，只會死記參數（parameters）如何改變模型的logic flows，改變線的移動和方程式的改變。實際上，學這個模型不純為考試和GPA，而是為了鋪路去了解Mundell建構最優貨幣區（Optimum currency area）的貨幣主張。

最優貨幣區是Mundell一九六一年提出的理論，是藉研究考慮各國的經濟條件後，背後暗推共同貨幣這個理念。因為政治和歷史因素，二戰後促成歐盟成立，令Mundell的理論引發廣泛討論，將他推做「歐元之父」。現在的歐元，就是Mundell的最大實驗場。歐元的根基，還是在於歐洲央行。無他，區塊鏈技術當時未確立嘛，歐元還未經得起去中央化（decentralised）的考驗。歐盟的貨幣問題，學理上叫「Triffin dilemma」，因為國家的經濟目標和經濟狀況，未必跟貨幣區的經濟目標和狀況一致，強行逼小國跟大國鼻子走，反而破壞貿易，勉強無幸福嘛。後凱因斯學派甚至認為，這樣的結構可能令fiscal policy的效用大減。現在的歐元或歐盟，正處於分崩離析階段，看來Mundell這個超越半世紀的偉大實驗也差不多可以下個結論吧。另一個關於區塊鏈的新實驗，也差不多要上馬吧。

地球上的貨幣通論，多是「一個司法管轄地區，一個貨幣」，共同貨幣是新鮮事。Mundell暗推共同貨幣這個理念，當時被同為諾獎得主，也是貨幣經濟學大師佛利民（Milton Friedman）看穿，他倆之間曾有不少學術交流、火併，花生味十足。

貨幣由以物易物進化到以礦物本位，是革命性突破。新朝王莽亂改貨幣，到明朝的金花銀，以至一戰前常用的金本位，相信大家都不陌生。Bretton Woods system令到美國貨幣成為世界貨幣，一個國家的貨幣成為另一個國家貨幣的錨，又是另一突破。

科技可以令經濟學的理論得以進一步的實踐和應用，我是這樣堅信的。區塊鏈這技術可以帶貨幣經濟學走到多遠，只怕我這科技盲，窮一生都睇不透。

http://nextplus.nextmedia.com/news/latest/20180112/567113