Measurement of ambient gamma dose rate in Metro Manila, Philippines, using a portable NaI(TI) scintillation survey meter
Radiological data such as ambient dose equivalent rate obtained from radiation monitoring in Metro Manila are useful for the detection of any anomalous increase of radiation dose rate levels due to nuclear or radiological emergencies. In this study, ambient dose equivalent rates were measured in dif...
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| Veröffentlicht in: | Environmental monitoring and assessment 2020-06, Vol.192 (6), p.400, Article 400 |
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| creator | Encabo, Rosario R. Cruz, Paolo Tristan F. Bonga, Antonio C. Dela Sada, Christian L. Omandam, Vanessa J. Olivares, Juanario U. Iwaoka, Kazuki Feliciano, Chitho P. |
| description | Radiological data such as ambient dose equivalent rate obtained from radiation monitoring in Metro Manila are useful for the detection of any anomalous increase of radiation dose rate levels due to nuclear or radiological emergencies. In this study, ambient dose equivalent rates were measured in different locations in Metro Manila using a portable NaI(Tl) scintillation survey meter to determine the background radiation levels within the capital. Ambient dose equivalent rates measured range from 32.7 ± 2.2 to 59.3 ± 8.7 nanosieverts per hour (nSv/h) with computed mean and median values of 41.7 and 39.6 nSv/h, respectively. These values were lower than the Philippines’ average dose rate which is 52 nanograys per hour (nGy/h). No significant trend was also observed in the monthly variation of ambient dose equivalent rate for most locations, with the dose rates being relatively consistent throughout a year. No significant trend was further observed in the monthly variation of ambient dose equivalent rate for the whole Metro Manila. Data obtained in this study were used to develop a dose rate distribution map of Metro Manila which could be used as a baseline reference of emergency responders for environmental radioactivity monitoring during nuclear or radiological emergencies that may affect Metro Manila. |
| doi_str_mv | 10.1007/s10661-020-08361-8 |
| format | Article |
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In this study, ambient dose equivalent rates were measured in different locations in Metro Manila using a portable NaI(Tl) scintillation survey meter to determine the background radiation levels within the capital. Ambient dose equivalent rates measured range from 32.7 ± 2.2 to 59.3 ± 8.7 nanosieverts per hour (nSv/h) with computed mean and median values of 41.7 and 39.6 nSv/h, respectively. These values were lower than the Philippines’ average dose rate which is 52 nanograys per hour (nGy/h). No significant trend was also observed in the monthly variation of ambient dose equivalent rate for most locations, with the dose rates being relatively consistent throughout a year. No significant trend was further observed in the monthly variation of ambient dose equivalent rate for the whole Metro Manila. Data obtained in this study were used to develop a dose rate distribution map of Metro Manila which could be used as a baseline reference of emergency responders for environmental radioactivity monitoring during nuclear or radiological emergencies that may affect Metro Manila.</description><identifier>ISSN: 0167-6369</identifier><identifier>EISSN: 1573-2959</identifier><identifier>DOI: 10.1007/s10661-020-08361-8</identifier><identifier>PMID: 32468213</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Atmospheric Protection/Air Quality Control/Air Pollution ; Background radiation ; Earth and Environmental Science ; Ecology ; Ecotoxicology ; Emergencies ; Emergency response ; Environment ; Environmental Management ; Environmental monitoring ; Environmental radioactivity ; Environmental science ; Equivalence ; Global positioning systems ; GPS ; Monitoring/Environmental Analysis ; Monthly variations ; Nuclear accidents & safety ; Nuclear physics ; Nuclear power plants ; Nuclear research ; Polls & surveys ; Radiation ; Radiation dosage ; Radiation measurement ; Radiation monitoring ; Radioactivity ; Scintillation ; Surveying ; Trends</subject><ispartof>Environmental monitoring and assessment, 2020-06, Vol.192 (6), p.400, Article 400</ispartof><rights>Springer Nature Switzerland AG 2020</rights><rights>Springer Nature Switzerland AG 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c419t-d403a85f8f9fce611378b5809a407cd4d49d8462237a2861edc59b386aae724f3</citedby><cites>FETCH-LOGICAL-c419t-d403a85f8f9fce611378b5809a407cd4d49d8462237a2861edc59b386aae724f3</cites><orcidid>0000-0002-6345-2659</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10661-020-08361-8$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10661-020-08361-8$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51297</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32468213$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Encabo, Rosario R.</creatorcontrib><creatorcontrib>Cruz, Paolo Tristan F.</creatorcontrib><creatorcontrib>Bonga, Antonio C.</creatorcontrib><creatorcontrib>Dela Sada, Christian L.</creatorcontrib><creatorcontrib>Omandam, Vanessa J.</creatorcontrib><creatorcontrib>Olivares, Juanario U.</creatorcontrib><creatorcontrib>Iwaoka, Kazuki</creatorcontrib><creatorcontrib>Feliciano, Chitho P.</creatorcontrib><title>Measurement of ambient gamma dose rate in Metro Manila, Philippines, using a portable NaI(TI) scintillation survey meter</title><title>Environmental monitoring and assessment</title><addtitle>Environ Monit Assess</addtitle><addtitle>Environ Monit Assess</addtitle><description>Radiological data such as ambient dose equivalent rate obtained from radiation monitoring in Metro Manila are useful for the detection of any anomalous increase of radiation dose rate levels due to nuclear or radiological emergencies. In this study, ambient dose equivalent rates were measured in different locations in Metro Manila using a portable NaI(Tl) scintillation survey meter to determine the background radiation levels within the capital. Ambient dose equivalent rates measured range from 32.7 ± 2.2 to 59.3 ± 8.7 nanosieverts per hour (nSv/h) with computed mean and median values of 41.7 and 39.6 nSv/h, respectively. These values were lower than the Philippines’ average dose rate which is 52 nanograys per hour (nGy/h). No significant trend was also observed in the monthly variation of ambient dose equivalent rate for most locations, with the dose rates being relatively consistent throughout a year. No significant trend was further observed in the monthly variation of ambient dose equivalent rate for the whole Metro Manila. Data obtained in this study were used to develop a dose rate distribution map of Metro Manila which could be used as a baseline reference of emergency responders for environmental radioactivity monitoring during nuclear or radiological emergencies that may affect Metro Manila.</description><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Background radiation</subject><subject>Earth and Environmental Science</subject><subject>Ecology</subject><subject>Ecotoxicology</subject><subject>Emergencies</subject><subject>Emergency response</subject><subject>Environment</subject><subject>Environmental Management</subject><subject>Environmental monitoring</subject><subject>Environmental radioactivity</subject><subject>Environmental science</subject><subject>Equivalence</subject><subject>Global positioning systems</subject><subject>GPS</subject><subject>Monitoring/Environmental Analysis</subject><subject>Monthly variations</subject><subject>Nuclear accidents & 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Abstracts</collection><jtitle>Environmental monitoring and assessment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Encabo, Rosario R.</au><au>Cruz, Paolo Tristan F.</au><au>Bonga, Antonio C.</au><au>Dela Sada, Christian L.</au><au>Omandam, Vanessa J.</au><au>Olivares, Juanario U.</au><au>Iwaoka, Kazuki</au><au>Feliciano, Chitho P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of ambient gamma dose rate in Metro Manila, Philippines, using a portable NaI(TI) scintillation survey meter</atitle><jtitle>Environmental monitoring and assessment</jtitle><stitle>Environ Monit Assess</stitle><addtitle>Environ Monit Assess</addtitle><date>2020-06-01</date><risdate>2020</risdate><volume>192</volume><issue>6</issue><spage>400</spage><pages>400-</pages><artnum>400</artnum><issn>0167-6369</issn><eissn>1573-2959</eissn><abstract>Radiological data such as ambient dose equivalent rate obtained from radiation monitoring in Metro Manila are useful for the detection of any anomalous increase of radiation dose rate levels due to nuclear or radiological emergencies. In this study, ambient dose equivalent rates were measured in different locations in Metro Manila using a portable NaI(Tl) scintillation survey meter to determine the background radiation levels within the capital. Ambient dose equivalent rates measured range from 32.7 ± 2.2 to 59.3 ± 8.7 nanosieverts per hour (nSv/h) with computed mean and median values of 41.7 and 39.6 nSv/h, respectively. These values were lower than the Philippines’ average dose rate which is 52 nanograys per hour (nGy/h). No significant trend was also observed in the monthly variation of ambient dose equivalent rate for most locations, with the dose rates being relatively consistent throughout a year. No significant trend was further observed in the monthly variation of ambient dose equivalent rate for the whole Metro Manila. Data obtained in this study were used to develop a dose rate distribution map of Metro Manila which could be used as a baseline reference of emergency responders for environmental radioactivity monitoring during nuclear or radiological emergencies that may affect Metro Manila.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><pmid>32468213</pmid><doi>10.1007/s10661-020-08361-8</doi><orcidid>https://orcid.org/0000-0002-6345-2659</orcidid></addata></record> |
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| subjects | Atmospheric Protection/Air Quality Control/Air Pollution Background radiation Earth and Environmental Science Ecology Ecotoxicology Emergencies Emergency response Environment Environmental Management Environmental monitoring Environmental radioactivity Environmental science Equivalence Global positioning systems GPS Monitoring/Environmental Analysis Monthly variations Nuclear accidents & safety Nuclear physics Nuclear power plants Nuclear research Polls & surveys Radiation Radiation dosage Radiation measurement Radiation monitoring Radioactivity Scintillation Surveying Trends |
| title | Measurement of ambient gamma dose rate in Metro Manila, Philippines, using a portable NaI(TI) scintillation survey meter |
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