László Makra
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László Makra (
Siklós Siklós ( sh-Latn-Cyrl, separator=/, Šikloš, Шиклош) is the 4th largest town in Baranya county, Hungary. The Malkocs Bey Mosque was built by the order of the Malkoçoğlu family. Ottoman conquest During Sultân Süleymân's 1543 campa ...
, 5 June 1952) is a Hungarian
climatologist Climatology (from Greek , ''klima'', "slope"; and , ''-logia'') or climate science is the scientific study of Earth's climate, typically defined as weather conditions averaged over a period of at least 30 years. Climate concerns the atmospheric ...
and university professor. His main research area is pollen climatology and, within this, analysis of climatological relationships of
ragweed Ragweeds are flowering plants in the genus ''Ambrosia'' in the aster family, Asteraceae. They are distributed in the tropical and subtropical regions of the Americas, especially North America,pollen Pollen is a powdery substance produced by most types of flowers of seed plants for the purpose of sexual reproduction. It consists of pollen grains (highly reduced Gametophyte#Heterospory, microgametophytes), which produce male gametes (sperm ...
, as well as relationship between ragweed pollen concentration and
respiratory disease Respiratory diseases, or lung diseases, are pathological conditions affecting the organs and tissues that make gas exchange difficult in air-breathing animals. They include conditions of the respiratory tract including the trachea, bronchi, ...
s.


Career

László Makra graduated from high school in 1970 at
Komló Komló (, , ) is a town in Baranya county, Hungary. The name of the settlement is derived from the local crop of hops (komló), an ingredient of beer. By the 18th century a depiction of this plant running up a support already featured on the heral ...
, and then in 1971 enrolled at the József Attila University of Szeged, Faculty of Natural Sciences, reading mathematics and geography, and graduating in 1976. Afterwards he started working as assistant lecturer at the Department of Climatology of the university. From 1996 to 2015 he was associate professor at the same department and, since 2015, he has been working at the Faculty of Agriculture, Institute of Management and Rural Development of
Szeged University The University of Szeged () is a public research university in Szeged, Hungary. Established as the Jesuit Academy of Kolozsvár in present-day Cluj-Napoca in 1581, the institution was re-established as a university in 1872 by Emperor Franz Jose ...
, located in
Hódmezővásárhely Hódmezővásárhely (; also known by other alternative names) is a city with county rights in southeast Hungary, on the Great Hungarian Plain, at the meeting point of the Békés-Csanádi Ridge and the clay grassland surrounding the river Tisz ...
. In 2016, he became a full professor. He defended his university doctoral thesis in 1978 and
PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
thesis in 1995, respectively. Later, in 2004 he was habilitated at the
University of Debrecen The University of Debrecen ( ) is a university located in Debrecen, Hungary. It is the oldest continuously operating institution of higher education in Hungary ever since its establishment in 1538. The university has a well established progra ...
. He spent several weeks on study tours in
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...
(
Yogyakarta Yogyakarta is the capital city of the Special Region of Yogyakarta in Indonesia, in the south-central part of the island of Java. As the only Indonesian royal city still ruled by Hamengkubuwono, a monarchy, Yogyakarta is regarded as an importan ...
, 1989),
China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
Beijing Beijing, Chinese postal romanization, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's List of national capitals by population, most populous national capital city as well as ...
, 1993;
Guangzhou Guangzhou, Chinese postal romanization, previously romanized as Canton or Kwangchow, is the Capital city, capital and largest city of Guangdong Provinces of China, province in South China, southern China. Located on the Pearl River about nor ...
(Canton), 1995] and the
Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...
(
Brno Brno ( , ; ) is a Statutory city (Czech Republic), city in the South Moravian Region of the Czech Republic. Located at the confluence of the Svitava (river), Svitava and Svratka (river), Svratka rivers, Brno has about 403,000 inhabitants, making ...
, 1996). He is a member of the editorial board of several Hungarian scientific periodicals, editor in an international scientific journal, member of the editorial board of seven international scientific journals, and is also committee member of the International Ragweed Society (2014- to date).


Research

His main research area is background
aerosol An aerosol is a suspension (chemistry), suspension of fine solid particles or liquid Drop (liquid), droplets in air or another gas. Aerosols can be generated from natural or Human impact on the environment, human causes. The term ''aerosol'' co ...
and bio-aerosol and, within the latter, climatic relationships of pollen, i.e. pollen climatology. This is a relatively new area in the international literature and a completely new area in Hungary. His research activities within pollen climatology are as follows: pollen statistics; pollen transport modeling; pollen concentration forecast; analysis of the relationship between
respiratory disease Respiratory diseases, or lung diseases, are pathological conditions affecting the organs and tissues that make gas exchange difficult in air-breathing animals. They include conditions of the respiratory tract including the trachea, bronchi, ...
s and pollen concentration;
climate sensitivity Climate sensitivity is a key measure in climate science and describes how much Earth's surface will warm for a doubling in the atmospheric carbon dioxide () concentration. Its formal definition is: "The change in the surface temperature in resp ...
analysis of different taxa; as well as expected future pollen concentrations within the context of
climate change Present-day climate change includes both global warming—the ongoing increase in Global surface temperature, global average temperature—and its wider effects on Earth's climate system. Climate variability and change, Climate change in ...
.


Key results

He led successful instrumental field research expeditions into
Inner Asia Inner Asia refers to the northern and landlocked regions spanning North Asia, North, Central Asia, Central, and East Asia. It includes parts of Western China, western and northeast China, as well as southern Siberia. The area overlaps with some d ...
(
China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
,
Xinjiang Uygur Autonomous Region Xinjiang,; , SASM/GNC: previously romanized as Sinkiang, officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest of the country at the crossroads ...
in 1990 and 1994),
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...
(
Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...
,
Bali Bali (English:; Balinese language, Balinese: ) is a Provinces of Indonesia, province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller o ...
, 1996) and
South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...
(
Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...
, 1998) in order to determine the elemental composition of the regional background
aerosol An aerosol is a suspension (chemistry), suspension of fine solid particles or liquid Drop (liquid), droplets in air or another gas. Aerosols can be generated from natural or Human impact on the environment, human causes. The term ''aerosol'' co ...
. The air samples collected by him and the data obtained were processed together with his colleagues at the Institute for Nuclear Research,
Hungarian Academy of Sciences The Hungarian Academy of Sciences ( , MTA) is Hungary’s foremost and most prestigious learned society. Its headquarters are located along the banks of the Danube in Budapest, between Széchenyi rakpart and Akadémia utca. The Academy's primar ...
, in
Debrecen Debrecen ( ; ; ; ) is Hungary's cities of Hungary, second-largest city, after Budapest, the regional centre of the Northern Great Plain Regions of Hungary, region and the seat of Hajdú-Bihar County. A city with county rights, it was the large ...
.


Main results of the expeditions


China expeditions (1990, 1994)

The high
sulfur Sulfur ( American spelling and the preferred IUPAC name) or sulphur ( Commonwealth spelling) is a chemical element; it has symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms ...
and
chlorine Chlorine is a chemical element; it has Symbol (chemistry), symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between ...
content of the regional
aerosol An aerosol is a suspension (chemistry), suspension of fine solid particles or liquid Drop (liquid), droplets in air or another gas. Aerosols can be generated from natural or Human impact on the environment, human causes. The term ''aerosol'' co ...
is of natural origin (
rock salt Halite ( ), commonly known as rock salt, is a type of salt, the mineral (natural) form of sodium chloride ( Na Cl). Halite forms isometric crystals. The mineral is typically colorless or white, but may also be light blue, dark blue, purple, pi ...
,
Glauber's salt Sodium sulfate (also known as sodium sulphate or sulfate of soda) is the inorganic compound with formula Na2SO4 as well as several related hydrates. All forms are white solids that are highly soluble in water. With an annual production of 6 mill ...
,
gypsum Gypsum is a soft sulfate mineral composed of calcium sulfate Hydrate, dihydrate, with the chemical formula . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, drywall and blackboard or sidewalk ...
), and it is a consequence of the widespread and intense salt accumulation in the outlet of the
Tarim Basin The Tarim Basin is an endorheic basin in Xinjiang, Northwestern China occupying an area of about and one of the largest basins in Northwest China.Chen, Yaning, et al. "Regional climate change and its effects on river runoff in the Tarim Basin, Ch ...
. Secondly the elemental ratios of Si/ Fe and Ca/Fe can be used as markers to track the long-range transport of aerosol coming from the Takla Makan area resulting in the yellow wind phenomenon over the inner and eastern parts of
China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
, and called the Kosa phenomenon over
Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
, the
Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
and
North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
.


Indonesian expedition (1996)

Chlorine Chlorine is a chemical element; it has Symbol (chemistry), symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between ...
,
sulfur Sulfur ( American spelling and the preferred IUPAC name) or sulphur ( Commonwealth spelling) is a chemical element; it has symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms ...
,
copper Copper is a chemical element; it has symbol Cu (from Latin ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orang ...
,
zinc Zinc is a chemical element; it has symbol Zn and atomic number 30. It is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic tabl ...
and
chromium Chromium is a chemical element; it has Symbol (chemistry), symbol Cr and atomic number 24. It is the first element in Group 6 element, group 6. It is a steely-grey, Luster (mineralogy), lustrous, hard, and brittle transition metal. Chromium ...
are substantially enriched in the atmospheric aerosol both over
Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...
and
Bali Bali (English:; Balinese language, Balinese: ) is a Provinces of Indonesia, province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller o ...
; most of the chlorine is of oceanic origin (ocean mist) and the
sulfur Sulfur ( American spelling and the preferred IUPAC name) or sulphur ( Commonwealth spelling) is a chemical element; it has symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms ...
is partly of
anthropogenic Anthropogenic ("human" + "generating") is an adjective that may refer to: * Anthropogeny, the study of the origins of humanity Anthropogenic may also refer to things that have been generated by humans, as follows: * Human impact on the enviro ...
origin and partly comes from biogenic emissions of the ocean; and
copper Copper is a chemical element; it has symbol Cu (from Latin ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orang ...
,
zinc Zinc is a chemical element; it has symbol Zn and atomic number 30. It is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic tabl ...
and
chromium Chromium is a chemical element; it has Symbol (chemistry), symbol Cr and atomic number 24. It is the first element in Group 6 element, group 6. It is a steely-grey, Luster (mineralogy), lustrous, hard, and brittle transition metal. Chromium ...
probably originate from soils.


Pollen climatology

László Makra established the branch of pollen climatology in
Hungary Hungary is a landlocked country in Central Europe. Spanning much of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and ...
. He is an internationally recognised researcher of the transport of particulate matter and bio-aerosol. He also identified the key source areas of long-range ragweed pollen transport arriving in the
Carpathian Basin The Pannonian Basin, with the term Carpathian Basin being sometimes preferred in Hungarian literature, is a large sedimentary basin situated in southeastern Central Europe. After the Treaty of Trianon following World War I, the geomorphologic ...
. He developed a procedure for separating long-range transport and regional transport of particulate matter and ragweed pollen, respectively. In addition, he determined the components of the transport, as well as the relative quantity of the net transport in the comprehensive and detailed maps of the quantitative and
phenological Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors (such as elevation). Examples include the date of emergence of leave ...
parameters of ragweed pollen for
Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
, and with these phenological parameters he produced the first maps for the continent. He is the author or co-author of over three hundred scientific publications.


Major publications

*Enrichment of desert soil elements in Takla Makan dust aerosol (co-author, 2002) *Meteorological variables connected with airborne ragweed pollen in Southern Hungary (co-author, 2004) *Selections from the history of environmental pollution, with special attention to air pollution (co-author, 2004) *The history and impacts of airborne Ambrosia (Asteraceae) pollen in Hungary (co-author, 2005) *Airborne pollen in three European cities: Detection of atmospheric circulation pathways by applying three-dimensional clustering of backward trajectories (co-author, 2010) *Forecasting ragweed pollen characteristics with nonparametric regression methods over the most polluted areas in Europe (co-author, 2011) *Monitoring the long-range transport effects on urban PM10 levels using 3D clusters of backward trajectories (co-author, 2011) *Multivariate analysis of respiratory problems and their connection with meteorological parameters and the main biological and chemical air pollutants (co-author, 2011) *Assessment of the Daily Ragweed Pollen Concentration with Previous-Day Meteorological Variables Using Regression and Quantile Regression Analysis for Szeged, Hungary (co-author, 2011) *Trends in the characteristics of allergenic pollen circulation in Central Europe based on the example of Szeged, Hungary (co-author, 2011) *Association of allergic asthma emergency room visits with the main biological and chemical air pollutants (co-author, 2012) *Climate sensitivity of allergenic taxa in Central Europe associated with new climate change – related forces (co-author, 2013) *Characterizing and evaluating the role of different transport modes on urban PM10 levels in two European cities using 3D clusters of backward trajectories (co-author, 2013). *Predicting daily ragweed pollen concentrations using computational intelligence techniques over two heavily polluted areas in Europe (co-author, 2014) *Association of allergic rhinitis or asthma with pollen and chemical pollutants in Szeged, Hungary, 1999-2007 (co-author, 2014) *Ragweed in Eastern Europe. Invasive Species and Global Climate Change (co-author, 2014) *A new approach used to explore associations of current Ambrosia pollen levels with current and past meteorological elements (co-author, 2015) *Anthropogenic Air Pollution in Ancient Times. History of Toxicology and Environmental Health. Toxicology in antiquity. (2015) *The history of ragweed in the world (co-author, 2015) *Modelling the introduction and spread of non-native species: International trade and climate change drive ragweed invasion (co-author, 2016) *Biogeographical estimates of allergenic pollen transport over regional scales: common ragweed and Szeged, Hungary as a test case (co-author, 2016)


Guest editor

*International Journal of Environment and Pollution, Special Issue: „Air Pollution” (2007-2009).


Member of the Editorial Board

*Acta Climatologica et Chorologica, Universitatis Szegediensis (1995-); *International Journal of Biometeorology (2012); *Annals of West University of Timişoara, Series of Biology (Timişoara, Romania, 2013-); *Journal of Climatology (2013-); *Archives of Otolaryngology and Rhinology (2014-); *Science, Technology and Development (2015-); *Journal of Natural Products Research Updates (2015-); *Advances in Modern Oncology Research (2015-).Lists are from Curriculum Vitae, 2016
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Awards

*Széchenyi István Scholarship (2001) *“Pro Meteorology” plaque (2002)


See also

*
Climatology Climatology (from Greek , ''klima'', "slope"; and , '' -logia'') or climate science is the scientific study of Earth's climate, typically defined as weather conditions averaged over a period of at least 30 years. Climate concerns the atmospher ...
* List of climate scientists *
Air pollution Air pollution is the presence of substances in the Atmosphere of Earth, air that are harmful to humans, other living beings or the environment. Pollutants can be Gas, gases like Ground-level ozone, ozone or nitrogen oxides or small particles li ...
see Further reading


References


External links

*Szegedi egyetemi almanach : 1921-1995. I. köt. (1996). Szeged, Mészáros Rezső. 559 p. Makra László biography see 362. p. in Hungarian
László Makra personal homepage
in Hungarian
Kiss Gábor Gergő: Interview with Laszlo Makra, "Délmagyarország", daily newspaper, 03. 08. 2014.
in Hungarian
László Makra, Curriculum Vitae, 2015
in English
CV, (SHORT) László Makra APPLICATION FOR FULL PROFESSORSHIP, 2015
in English
Google Scholar
in English and in Hungarian
CV, 2016
in English
Academia
in English
CV, 2015
in Hungarian

in Hungarian {{DEFAULTSORT:Makra, László Climatologists Hungarian geographers 1952 births Living people People from Baranya County University of Szeged alumni Academic staff of the University of Szeged