부산지역 최근 4년간(2015~2018년) PM₁₀과 PM_2.5농도의 시·공간적 변화 특성

전병일,Jeon, Byung-Il 한국환경과학회 2020 한국환경과학회지 Vol.29 No.7

This study investigates the characteristics of diurnal, seasonal, and weekly roadside and residential concentrations of PM₁₀ and PM_2.5 in Busan, as well as relationship with meteorological phenomenon. Annual mean PM₁₀ and PM_2.5 concentrations in Busan were 44.2 ㎍/㎥ and 25.3 ㎍/㎥, respectively. The PM_2.5/PM₁₀ concentration ratio was 0.58. Diurnal variations of PM₁₀ and PM_2.5 concentrations in Busan were categorized into three types, depending on the number of peaks and times at which the peaks occurred. Roadside PM₁₀ concentration was highest on Saturday and lowest on Friday. Residential PM₁₀ concentration was highest on Monday and lowest on Friday. Residential PM_2.5 concentration was highest on Monday and Tuesday and lowest on Friday. PM₁₀ and PM_2.5 concentrations were highest on Asian dust and haze, respectively. The results indicate that understanding the spaciotemporal variation of fine particles could provide insights into establishing a strategy to control urban air quality.

부산지역 여름철 해풍 발생 시 미세먼지와 초미세먼지 중의 이온성분 특성

전병일,Jeon, Byung-Il 한국환경과학회 2021 한국환경과학회지 Vol.30 No.6

This research investigated the characteristics of fine particle concentration and ionic elements of PM_2.5 during sea breeze occurrences during summertime in Busan. The PM₁₀ and PM_2.5 concentrations of summertime sea breeze occurrence days in Busan were 46.5 ㎍/m³ and 34.9 ㎍/m³, respectively. The PM₁₀ and PM_2.5 concentrations of summertime non-sea breeze occurrence days in Busan were 25.3 ㎍/m³ and 14.3 ㎍/m³, respectively. The PM_2.5/PM₁₀ ratios of sea breeze occurrence days and non-sea breeze occurrence days were 0.74 and 0.55, respectively. The SO₄^2-, NH₄⁺, and NO₃^- concentrations in PM_2.5 of sea breeze occurrence days were 9.20 ㎍/m³, 4.26 ㎍/m³, and 3.18 ㎍/m³ respectively. The sulfur oxidation ratio (SOR) and nitrogen oxidation ratio (NOR) of sea breeze occurrence days were 0.33 and 0.05, respectively. These results indicated that understanding the fine particle concentration and ionic elements of PM_2.5 during sea breeze summertime conditions can provide insights useful for establishing a control strategy of urban air quality.

2005년 봄철 부산 서부지역 PM₁₀, PM_2.5의 금속성분 특성

전병일,Jeon, Byung-Il 한국환경영향평가학회 2007 환경영향평가 Vol.16 No.5

The $PM_{10}$ and $PM_{2.5}$ aerosols were collected at Busan from March to May, 2005, and the concentrations of some metallic elements were analysed to study their characteristics. The mean concentration of $PM_{10}$ was $66.5{\pm}23.0{\mu}g/m^3$ with a range of 22.2 to $118.1{\mu}g/m^3$. The mean concentration of $PM_{2.5}$ was $46.1{\pm}17.2{\mu}g/m^3$ with a range of 9.7 to $83.3{\mu}g/m^3$. The ratio of $PM_{2.5}/PM_{10}$ was 0.69 at Busan. The distribution of metallic elements for $PM_{10}$ and $PM_{2.5}$ were Cd<Ni<Cr<Ti<Sr< ${\ldots}$ <Al<K<Fe<Si<Na and Cd<Cr<Ti<Ni${\ldots}$ <K<Al<Si<Fe<Na, respectively. The mean mass concentrations of Asian dust and non Asian dust in $PM_{10}$ were $94.9{\mu}g/m^3$ and $63.7{\mu}g/m^3$, respectively. And The mean mass concentrations of Asian dust and non Asian dust in $PM_{2.5}$ were $56.9{\mu}g/m^3$ and $45.1{\mu}g/m^3$, respectively. The mean values of crustal enrichment factors for five elements (Cd, Cu, Pb, V and Zn) were all higher than 10, possibly suggesting the influence of anthropogenic sources. The soil contribution ratios for $PM_{10}$ and $PM_{2.5}$ were 20.5% and 19.4, respectively.

부산지역 여름철 고농도 PM_2.5 농도 사례와 기상학적 관련성

전병일,Jeon, Byung-Il 한국환경과학회 2020 한국환경과학회지 Vol.29 No.7

This research investigated the meteorologically relevant characteristics of high PM_2.5 episodes in Busan. The number of days when daily mean PM₁₀ concentration exceeded 100 ㎍/㎥ and the PM_2.5 concentration exceeded 50 ㎍/㎥ over the last four years in Busan were 24 and 58, respectively. Haze occurrence frequency was 37.6% in winter, 27.4% in spring, 18.6% in fall, and 16.4% in summer. Asian dust occurrence frequency was 81.8% in spring, 9.1% in fall and winter, and 0% in summer. During summer in Busan, high PM_2.5 episode occurred under the following meteorological conditions. 1) Daytime sea breeze. 2) Mist and haze present throuout the day. 3) Anti-cyclone located around the Korean peninsula. 4) Stable layer formed in the lower atmosphere. 5) Air parcel reached Busan by local transport rather than by long-range transport. These results indicate that understanding the meteorological relevance of high PM_2.5 episodes could provide insight for establishing a strategy to control urban air quality.

부산지역 2020년 3월 19일 한랭전선 통과 시 미세먼지 농도 특성

전병일,Jeon, Byung-Il 한국환경과학회 2021 한국환경과학회지 Vol.30 No.6

This research investigated the characteristics of fine particles during cold front passage in Busan, on March 19, 2020. The cold front speed was 17.4 m/s (about 63k km/hr), moving from the northwest to the southeast, and with a width of about 64 km. The backward trajectory analysis showed that a southern sea air parcel flowed into Busan before the cold front passage, carrying continental materials from China transported into Busan after cold front passage. The PM₁₀ concentration in Busan showed a rapid increase after passing through the cold front, with PM_2.5 showing a high concentration during cold front passage. The PM_2.5/PM₁₀ ratio was 0.10 - 0.30. When the cold front passed, SO₄^2-, NO₃^-, Ca²⁺, NH₄⁺, Na⁺, and K⁺ in PM_2.5 showed a rapid increase, with SO₄^2- showing the most significant increase. These results indicated that understanding the characteristics of fine particles during cold front passage in Busan could provide insight into establishing a strategy to control urban air quality.

부산지역 PM10과 PM2.5 농도의 주중/주말 특성

전병일 ( Byung Il Jeon ),황용식 ( Yong Sik Hwang ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.7

The study investigates weekday/weekend characteristics of PM10 and PM2.5 concentrations and meteorological elements in Busan. The PM10 concentration is highest on Wednesday and Thursday, and lowest on Sunday. On the other hand, the PM2.5 concentration is highest on Wednesday and lowest on Sunday. The location where concentrations of weekdays and weekend differ the most is Hwakjang-dong, the industrial area, and where they differ the least is Gijang-up and Joa-dong, the residential area. Fine particle concentration in the industrial area was consistent at dawn and in the morning, but varied in the afternoon and at night. The visibility of Sunday was 0.49 km higher than that of weekdays, and the solar radiation of Sunday was 0.11 MJ/㎡ higher than that of weekdays. These results indicate that the concentration of fine particles had influence on the change of visibility and solar radiation.

부산지역 도로변과 주거지역의 PM₁₀과 PM_2.5 농도 특성

전병일 ( Byung-il Jeon ) 한국환경과학회 2018 한국환경과학회지 Vol.27 No.7

This research investigated the characteristics of PM₁₀ and PM_2.5 concentration at roadside (Choryangdong) and residential (Sujeongdong) locations in Busan. The PM₁₀ concentration at roadside and residential locations were 50.5 and 42.9 ㎍/㎥, respectively, and PM_2.5 at roadside and residential were 28.1 and 23.9 ㎍/㎥, respectively. The roadside/residential ratio of PM₁₀ and PM_2.5 concentration were 1.18, and the PM_2.5/PM₁₀ ratio at roadside and residential were 0.55 and 0.56, respectively. The PM₁₀ concentration in spring at roadside were 64.6 ㎍/㎥, and were the highest, followed by 48.0 ㎍/㎥ and 45.2 ㎍/㎥ in winter and summer. Number of exceedances per year of the daily limit value for PM₁₀ at roadside and residential were 66 and 39 days, respectively. The PM₁₀ and PM_2.5 concentration, and PM_2.5/PM₁₀ ratio at roadside were 53.0 ㎍/㎥, 29.0 /㎥ and 0.55 for day, and 45.5 ㎍/㎥, 26.7 ㎍/㎥ and 0.59 for night, respectively. These results indicate that understanding the relationship between roadside and residential could provide insight into establishing a strategy to control urban air quality.

부산지역 봄철 주중/주말의 PM10 중 이온성분의 화학적 조성

전병일 ( Byung Il Jeon ) 한국환경과학회 2015 한국환경과학회지 Vol.24 No.6

This study investigates weekday/weekend characteristics of PM10 concentration and chemical composition of water-soluble ions in Busan in the spring of 2013. Contribution rate of water-soluble ions to PM10 concentration in weekday/weekend were 41.5% and 38.5%, respectively. Contribution rate of SO4 2- to total ion mass in weekday/weekend were 30.4% and 33.8%, respectively. Contribution rate of total inorganic water-soluble ions in PM10 in weekday/weekend were 42.2% and 39.1% (mean 41.4%), respectively. [NO3 -/SO4 2-] ratio in weekday/weekend were 1.01 and 0.97(mean 0.99), respectively, which indicated that weekday ratio was higher. Contribution rate of sea salts and Cl-/Na+ ratio in PM10 in weekday/weekend were 8.1% and 7.6%, 0.37% and 0.41%, respectively. This research will help understand chemical composition of water-soluble ions during the weekday/weekend and will be able to measure the contribution level of artificial anthropogenic source on urban air.

연구논문 : 부산 구덕산의 미세먼지(PM10) 농도 특성과 기상학적 관련성

전병일 ( Byung Il Jeon ) 한국환경과학회 2015 한국환경과학회지 Vol.24 No.7

The study investigates the characteristics of PM10 concentration in Guducsan air quality observatory and in particular, analyzes the relationship between sudden increase of PM10 concentration in the morning of spring 2014 and meteorological parameters. PM10 concentration in April was 46.9 ㎍/㎥, the highest, followed by 45.5 ㎍/㎥ and 44.6 ㎍/㎥ in March and May, and 21.9 ㎍/㎥ in August. The low concentration in the early morning appeared on 0800 LST in spring, summer, and fall, whereas it emerged on 0900 LST in winter. High concentration in daytime lasted from 1200 LST to 1500 LST in spring and fall, whereas it continued from 1300 LST to 1600 LST in winter. The findings of PM10 concentration and change of meteorological parameters in Guducsan from April 20th to 27th in 2014 are as follows. The low concentration at dawn and in the morning decreased due to strong land breeze. Also, the sudden increase of PM10 concentration in the morning was attributable to low wind speed. Lastly, the sudden decrease of PM10 concentration in the afternoon was attributed to diffusion by strong sea breeze.

부산지역 봄철 주중/주말의 PM10과 PM2.5 질량농도와 금속이온농도 특성

전병일 ( Byung Il Jeon ) 한국환경과학회 2015 한국환경과학회지 Vol.24 No.6

This study investigates weekday/weekend characteristics of PM10 and PM2.5 concentration and metallic elements in Busan in the springtime of 2013. PM10 concentration on weekday/weekend were 77.54 and 67.28 ㎍/㎥, respectively. And PM2.5 concentration on weekday/weekend were 57.81 and 43.83 ㎍/㎥, respectively. Also, PM2.5/PM10 concentration ratio on weekdays/weekend was 0.75 and 0.65, respectively. The contribution rates of Na to total metallic elements in PM10 on weekday/weekend were 38.3% and 38.9%, respectively. It would be useful in control effectively with management of urban fine particle to understand characteristics of fine particle concentration on weekday/weekend.