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Microbial pollution assessment of storage environment for the ancient Buddhist relics in Tibetan Palace Museum 西藏故宫博物院古代佛教文物保存环境的微生物污染评价
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-07-01 DOI: 10.1007/s10453-023-09791-w
Ge Zhang, Shuai Liu, Yang Li, Zhipeng Zhou, Qian Cheng, Qiaochu Wang

This paper focuses on studying the microbiological properties of the Tibetan Palace Museum, which is located on the Qinghai-Tibet Plateau and contains a vast collection of cultural heritage artifacts. The air quality of the museum is critical to the preservation of these artifacts, and factors such as microbial species, concentration, and particle size distribution are important indicators of air quality. The paper examines the concentration levels, particle size distribution, species diversity, and correlation between environmental factors and microorganisms in the museum. The study found that the concentration of bacteria was 2–3 times higher than normal, while the concentration of fungi was lower than average. The predominant microorganisms in the museum were Bacillus cereus, Bacillus psychrodurans, and Neurospora terricola. The research also discovered that the concentration of microorganisms was positively correlated with PM2.5 concentration and negatively correlated with temperature, relative humidity, and PM10 concentration. The study concludes that the museum's micro-environment is not ideal for the preservation of ancient books and cultural relics, and more research is necessary to identify the general microbiological traits and eradicate hazardous species in plateau museums.

本文重点研究了位于青藏高原的西藏故宫博物院的微生物特性,该博物馆收藏了大量的文化遗产文物。博物馆的空气质量对这些文物的保存至关重要,微生物种类、浓度和粒度分布等因素是空气质量的重要指标。本文考察了博物馆中的浓度水平、颗粒大小分布、物种多样性以及环境因素与微生物之间的相关性。研究发现,细菌的浓度是正常水平的2-3倍,而真菌的浓度低于平均水平。博物馆中的主要微生物是蜡状芽孢杆菌、嗜冷芽孢杆菌和terricola神经孢子菌。研究还发现,微生物浓度与PM2.5浓度呈正相关,与温度、相对湿度和PM10浓度呈负相关。研究得出结论,博物馆的微观环境不适合保存古籍和文物,需要进行更多的研究,以确定高原博物馆的一般微生物特征并根除危险物种。
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引用次数: 0
Variability between Hirst-type pollen traps is reduced by resistance-free flow adjustment 赫斯特型花粉捕获器之间的变异性通过无阻力流量调节来降低
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-06-02 DOI: 10.1007/s10453-023-09790-x
M. M. Triviño, J. M. Maya-Manzano, F. Tummon, B. Clot, Ł. Grewling, C. Schmidt-Weber, J. Buters

During an international campaign organized in Munich (Germany) in 2021 to test the performance of automatic pollen traps, we ran four manual Hirst-type pollen traps in parallel. All 4 Hirst-type pollen traps were set and monitored on a weekly basis for the entire campaign to 10 L/min using the same standard hand-held rotameter. Afterwards, a hand-held heat-wire anemometer (easyFlux®) was used additionally to obtain the correct flow without internal resistance. Uncorrected pollen concentrations were 26.5% (hourly data) and 21.0% (daily data) higher than those obtained after correction with the easyFlux®. After mathematical flow correction, the average coefficient of variation between the four Hirst traps was 42.6% and 16.5% (hourly and daily averages, respectively) for birch and 36.8% and 16.8% (hourly and daily averages, respectively) for grasses. When using the correct flow of each pollen trap (i.e. the resistance free anemometer measured flow), for hourly values, the median standard deviation across the traps for the eight pollen types was reduced by 28.2% (p < 0.001) compared to the uncorrected data. For daily values, a significant decrease in the median standard deviation (21.6%) between traps was observed for 7 out of 8 of the pollen types, (p < 0.05 or lower). We therefore recommend continuing to calibrate Hirst-type pollen traps with standard hand-held rotameters to avoid changing the impacting characteristics of the instruments, but simultaneously also measure with resistance-free flow meters to be able to apply flow corrections to the final pollen concentrations reported. This method improved the accuracy of the final results.

2021年,在德国慕尼黑组织的一场测试自动花粉捕捉器性能的国际活动中,我们并行运行了四个手动赫斯特型花粉捕捉器。在整个活动中,使用相同的标准手持式转子流量计,每周设置并监测所有4个赫斯特型花粉捕集器至10L/min。之后,还使用了手持式热线风速计(easyFlux®),以在没有内部阻力的情况下获得正确的流量。未校正的花粉浓度比使用easyFlux®校正后获得的花粉浓度高26.5%(小时数据)和21.0%(每日数据)。经过数学流量校正后,四个赫斯特陷阱之间的平均变异系数,桦树为42.6%和16.5%(分别为每小时和每日平均值),草为36.8%和16.8%(分别是每小时和每天平均值)。当使用每个花粉收集器的正确流量(即无阻力风速计测量的流量)时,对于小时值,八种花粉类型的收集器的中值标准偏差减少了28.2%(p <; 0.001)。就日值而言,8种花粉类型中有7种的陷阱之间的中位标准偏差(21.6%)显著降低(p <; 0.05或更低)。因此,我们建议继续使用标准手持式转子流量计校准赫斯特型花粉收集器,以避免改变仪器的冲击特性,但同时也使用无阻力流量计进行测量,以便能够对报告的最终花粉浓度进行流量校正。这种方法提高了最终结果的准确性。
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引用次数: 0
Pollen germination significantly affected by SO2, NOx, PM10 and AQI in the Amravati City of Maharashtra, India SO_2、NO_x、PM_10和AQI对印度马哈拉施特拉邦Amravati市花粉萌发有显著影响
IF 2.2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-05-11 DOI: 10.1007/s10453-023-09785-8
Chetna Ugale, Jaykiran A. Tidke, Girish Korekar

Amravati is a developing urban area of Maharashtra state in Central India, with the growth, of urbanization there is an increase in traffic load and pollution. In the present investigation, we examine the effect of vehicular pollution (SO2, NOx PM10, and AQI) on pollen germination. Based on the traffic load we have distinguished three major areas, a no-traffic area (Site A), a heavy traffic area (Site B), and a moderate traffic area (Site C) from Amravati city of Central India. From all three sites, pollen and pistils of Catharanthus roseus, Martinia annua, and Tridax procumbens were collected and examined for pollen viability. We found a significant variation in pollen viability between the no-traffic area and heavy traffic area in all three studied plant species. This suggests that pollen viability is significantly affected by the traffic load of the city irrespective of particular species. The correlation analysis confirmed pollen viability is negatively impacted by air pollutants, we found that higher polluted area have significantly lower amounts of pollen viability. The present study reveals that all studied plant species pollen shows sensitivity to the pollutant concentration and is affected by pollution. Further study needs to investigate any changes that occurred at a cellular and genetic level.

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引用次数: 0
Spore dispersal patterns of the ascomycete fungus Ramularia collo-cygni and their influence on disease epidemics 子囊菌真菌秋cyramularia collo- cyi孢子传播模式及其对疾病流行的影响
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-05-11 DOI: 10.1007/s10453-023-09787-6
N. D. Havis, J. Kaczmarek, M. Jedryczka, M. Hess, Z. Fang

Ramularia leaf spot is a major economic disease of barley caused by the dothidiomycete fungus Ramularia collo-cygni. The fungus has a complex life cycle which includes extensive late season spore release events and a seed-borne phase. Predicting disease epidemics during the growing season remains a difficult challenge. To better understand the interaction between spore movement and disease epidemics, spore samplers were set up in Germany (2 sites over 4 years), Poland (7 sites over 2 years) and the UK (2 sites over 9 years), where the disease has been observed. Spore concentrations were determined using a real-time PCR assay, and meteorological data were obtained from co-located automatic stations. Spore release events were seen to peak in June on mainland Europe and July in the UK. The pattern of spore release was broadly similar across countries with earlier peaks in mainland Europe. A relationship was observed in the UK between July spore levels and disease in following winter barley crops. Rainfall and temperature were proposed as significant drivers of spore release in these months. The major environmental parameter associated with spore release across the two UK sites was crop surface wetness, although some site-specific interactions were noted for rainfall and wind movement. Regression analysis of spore patterns and disease epidemics indicates a relationship between spore levels 75 and 105 days pre-harvest and final disease levels in UK winter barley crops. This relationship was not observed in spring barley. The implications on risk forecasts are discussed.

大麦叶斑病是一种主要的经济病害,由斑点状芽孢杆菌(Ramularia collo cygni)引起。真菌有一个复杂的生命周期,包括广泛的晚季孢子释放事件和种子传播阶段。预测生长季节的疾病流行仍然是一项艰巨的挑战。为了更好地了解孢子运动与疾病流行之间的相互作用,在德国(4年内有2个地点)、波兰(2年内有7个地点)和英国(9年内有两个地点)建立了孢子采样器,在这些地方观察到了疾病。使用实时PCR测定法测定孢子浓度,并从位于同一位置的自动站获得气象数据。孢子释放事件在欧洲大陆的6月和英国的7月达到峰值。各国的孢子释放模式与欧洲大陆早期的峰值大致相似。在英国观察到7月份孢子水平与随后的冬季大麦作物的病害之间存在关系。降雨和温度被认为是这几个月孢子释放的重要驱动因素。英国两个地点与孢子释放相关的主要环境参数是作物表面湿度,尽管降雨和风的运动存在一些特定地点的相互作用。孢子模式和疾病流行的回归分析表明,英国冬大麦作物收获前75和105天的孢子水平与最终疾病水平之间存在关系。在春大麦中没有观察到这种关系。讨论了对风险预测的影响。
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引用次数: 0
Comparative aerobiological study between two stations located at different points in a coastal city in Southern Spain 位于西班牙南部沿海城市不同点的两个站点之间的比较空气生物学研究
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-04-12 DOI: 10.1007/s10453-023-09786-7
R. Ruiz-Mata, M. M. Trigo, M. Recio, E. de Gálvez-Montañez, A. Picornell

Due to the increase in allergies, aerobiological studies carried out in cities are essential to keep the population informed about the pollen atmospheric concentrations detected. However, the high cost and complexity of aerobiological studies often mean that the information is generated from a single sampling point that may not be representative of the entire city. In this study, the data obtained by two volumetric pollen traps, located in the coastal city of Malaga (Spain) were analyzed. One of the pollen traps was situated in the city center while the other was located on the city outskirts, 5 km away from the first. This was complemented with a meteorological and land use analysis to determine their influence on the pollen concentrations. Despite being located within the same city, the data obtained from both collectors showed significant differences in the relative abundance and annual integrals of the main pollen types, as well as in the periods in which elapse their main pollen seasons. These differences were more notable in the case of Amaranthaceae, Casuarina, Parietaria and Plantago pollen types due to the asymmetric distribution of green areas, agro-forestry areas and urban surfaces within the city, as well as the influence of local wind dynamics on the airborne pollen detected. Despite that, some differences were also observed in the other pollen types. For all the above, we consider that it is important to keep operational several sampling points in cities of a certain magnitude to provide more detailed information about atmospheric pollen concentrations.

由于过敏的增加,在城市进行的空气生物学研究对于让人们了解检测到的花粉大气浓度至关重要。然而,航空生物学研究的高成本和复杂性往往意味着信息是从一个采样点产生的,可能不能代表整个城市。在这项研究中,分析了位于西班牙沿海城市马拉加的两个体积花粉捕捉器获得的数据。其中一个花粉收集器位于市中心,另一个位于市郊,距离第一个花粉收集器5公里。除此之外,还进行了气象和土地利用分析,以确定它们对花粉浓度的影响。尽管位于同一个城市,但从两位采集者那里获得的数据显示,主要花粉类型的相对丰度和年积分以及主要花粉季节的逝去时间存在显著差异。由于城市内绿化区、农林区和城市表面的不对称分布,以及当地风动力学对检测到的空气传播花粉的影响,阿玛兰科、木麻黄、Paritaria和Plantago花粉类型的差异更为显著。尽管如此,在其他花粉类型中也观察到了一些差异。鉴于上述情况,我们认为在一定规模的城市中保持几个采样点的运行,以提供有关大气花粉浓度的更详细信息,这一点很重要。
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引用次数: 0
Chilling and heat requirements for woody taxa in Tétouan (NW Morocco) Tétouan(摩洛哥西北部)木本分类群的冷和热需求
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-04-11 DOI: 10.1007/s10453-023-09789-4
Asmaa Boullayali, Carmen Galán, Moisés Martínez-Bracero, Hassan Bouziane

Impact of climate change affects chilling and heat accumulation that phenological development of plant needs, air temperature being determinant for flowering, pollination and fruit production, but few knowledges are available in the winter and spring climate of Tétouan. The physiological mechanisms of the reproductive cycle that controls pollen emission are related with temperature, and different environmental factors regulate strongly the reproductive phases of the plant’s life cycle. However, from an empirical point of view, the alternance between endodormancy and ecodormancy is not well detectable. Our work focuses on determining the heat accumulation periods associated with the thermal balance needed to fulfill the chilling and heat required for budbreak and bloom timing. To evaluate Morus, Pistacia, Quercus and Olea response to changes in chill and heat accumulation rates, the Dynamic Model and the Growing Degree-Days Method were used. Regression analyses identified the chilling and forcing periods for these taxa. Over the past 12 years, chill accumulation during tree dormancy increased significantly for most of woody taxa studied, while heat accumulation decreased not significantly for all taxa. Heat accumulation was the main driver of bloom timing, with effects of variation in chill accumulation.

气候变化的影响影响植物的酚类发育所需的低温和热量积累,气温是开花、授粉和果实生产的决定因素,但在Tétouan的冬季和春季气候中,几乎没有可用的知识。控制花粉释放的生殖周期的生理机制与温度有关,不同的环境因素强烈调节植物生命周期的生殖阶段。然而,从经验的角度来看,内胚层发育和生态休眠之间的变化并不能很好地检测到。我们的工作重点是确定与热平衡相关的热量积累期,以满足芽裂和开花时间所需的冷却和热量。为了评估桑椹、黄连木、栎和木犀对冷积累率和热积累率变化的响应,使用了动态模型和生长度天数法。回归分析确定了这些分类群的冷藏期和强制期。在过去的12年里,大多数研究的木本类群在树木休眠期间的冷积累显著增加,而所有类群的热积累并没有显著减少。热量积累是开花时机的主要驱动因素,受冷积累变化的影响。
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引用次数: 0
Manual and automatic quantification of airborne fungal spores during wheat harvest period 小麦收获期空气中真菌孢子的手动和自动定量
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-04-07 DOI: 10.1007/s10453-023-09788-5
Isidora Simović, Predrag Matavulj, Branko Šikoparija

Due to the large diversity and quantity of fungal spores, such aerobiological studies are not so abundant and haven’t been done in Serbia so far. As the Pannonian plain is listed as a source of fungal spores all around Europe, our study aimed to describe the aerobiological characteristics of airborne fungal spores measured in location representative for the Pannonian plain during the wheat harvest period and to evaluate automatic bioaerosol monitoring for quantification of total airborne fungal spores. The study revealed that Cladosporium, Alternaria, and Coprinus accounted for over 90% of the total fungal spores count. The relation to meteorology confirmed a distinction between “dry” and “wet” spores and their diurnal cycles, as Ganoderma and Coprinus peaked around dawn, and Alternaria and Cladosporium peaks correlated with daily peaks of temperature and relative humidity. Automatically quantified daily concentrations of total airborne fungal spores showed a statistically significant positive correlation (Pearson r = 0.55, p < 0.01) to values obtained from the manual Hirst method. The same correlations were found for total pollen (Pearson r = 0.60, p < 0.01) and starch granules (Spearman r = 0.80, p < 0.01). A low intensity of fluorescence measurements for fungal spores requires a separate automatic detection from pollen and indicates the need for a good quality training dataset. Thus, Hirst-type measurements provide an essential model for classifying bioaerosols with artificial intelligence.

由于真菌孢子的多样性和数量巨大,这种空气生物学研究并不丰富,迄今为止还没有在塞尔维亚进行过。由于潘诺尼亚平原被列为欧洲各地真菌孢子的来源,我们的研究旨在描述小麦收获期在代表潘诺尼亚高原的位置测量的空气传播真菌孢子的空气生物学特征,并评估自动生物气溶胶监测以量化空气传播真菌总孢子。研究表明,枝孢菌、链格孢菌和Coprinus占真菌孢子总数的90%以上。与气象学的关系证实了“干”和“湿”孢子及其昼夜周期之间的区别,因为灵芝和Coprinus在黎明前后达到峰值,链格孢菌和枝孢菌的峰值与温度和相对湿度的日峰值相关。自动定量的总空气传播真菌孢子的日浓度显示出统计学上显著的正相关(Pearson r = 0.55,p <; 0.01)至从手动赫斯特方法获得的值。总花粉也存在相同的相关性(Pearson r = 0.60,p <; 0.01)和淀粉颗粒(Spearman r = 0.80,p <; 0.01)。真菌孢子的低强度荧光测量需要从花粉中进行单独的自动检测,并且表明需要高质量的训练数据集。因此,赫斯特型测量为用人工智能对生物气溶胶进行分类提供了一个重要的模型。
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引用次数: 1
Modeling airborne pollen concentrations at an urban scale with pollen release from individual trees 用单个树木的花粉释放模拟城市尺度的空气中花粉浓度
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-04-03 DOI: 10.1007/s10453-023-09784-9
Daniel S. W. Katz, Alan P. Baptist, Stuart A. Batterman

Airborne pollen can trigger allergic reactions, but exposure is poorly understood because neither regional pollen models nor monitoring networks adequately capture the extensive spatial variation in pollen concentrations observed at urban scales. Here, we test whether pollen emissions from individual source plants can predict spatial variation in airborne pollen at scales of hundreds of meters to kilometers. To do so, we quantified pollen release within a city for oaks (Quercus) by mapping individual trees using remote sensing, calculating each tree’s pollen production with allometric equations, and estimating the timing of flowering with satellite-derived temperature data. We also measured airborne pollen concentrations multiple times a week at 9 sites in the first year and at 15 sites in the second year. Predicted pollen release explained 86% of the spatial variation in measured airborne pollen across the pollen season and 55% of local airborne pollen concentrations on any given day, whereas a traditional monitoring station measurements explained only 34% of spatiotemporal variation. Airborne pollen was best predicted by pollen release within approximately 1–2 km. Our results demonstrate that airborne pollen can be effectively modeled within cities by quantifying pollen release from individual trees. This type of approach could potentially be applied elsewhere, improving predictions of airborne pollen within cities and providing opportunities to avoid allergen exposure, fine-tune medication use, and better inform tree management decisions.

Graphical abstract

空气中的花粉会引发过敏反应,但人们对接触花粉的情况知之甚少,因为无论是区域花粉模型还是监测网络都无法充分捕捉到在城市尺度上观察到的花粉浓度的广泛空间变化。在这里,我们测试了单个来源植物的花粉排放是否可以预测空气中花粉在数百米到公里尺度上的空间变化。为此,我们通过遥感绘制单株树木的地图,用异速方程计算每棵树的花粉产量,并用卫星衍生的温度数据估计开花时间,来量化城市内橡树(Quercus)的花粉释放量。我们还在第一年的9个地点和第二年的15个地点每周多次测量空气中的花粉浓度。预测的花粉释放解释了整个花粉季节测量的空气传播花粉的86%的空间变化和任何一天当地空气传播花粉浓度的55%,而传统监测站的测量仅解释了34%的时空变化。空气中的花粉最好通过大约1-2公里内的花粉释放来预测。我们的研究结果表明,通过量化个别树木的花粉释放,可以在城市内有效地模拟空气中的花粉。这种方法可能会应用于其他地方,改善对城市内空气传播花粉的预测,并提供机会避免过敏原暴露,微调药物使用,更好地为树木管理决策提供信息。图形摘要
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引用次数: 2
Accuracy of a hand-held resistance-free flowmeters for flow adjustments of Hirst-Type pollen traps 赫斯特型花粉收集器流量调节用手持式无阻力流量计的精度
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-02-19 DOI: 10.1007/s10453-023-09782-x
Mariel Suarez-Suarez, Jose M. Maya-Manzano, Bernard Clot, Marie-José Graber, Christine Sallin, Fiona Tummon, Jeroen Buters

The Hirst-type pollen trap (1952) is the most common device for aerobiological measurements of pollen and fungal spores in ambient air. In the 1960s the in-line flowmeter was removed and studies since then showed considerable variability in the airflow pumped through the instrument when using hand-held rotameters with an internal airflow resistance to adjust flowrates. To avoid this problem, our study compared the variability of airflow rates of Hirst-type traps when using commercially-available low-resistance airflow meters (heat anemometers) at various timescales. Experiments were conducted in Munich (Germany) and Payerne (Switzerland), using 4 different easyFlux® instruments and 6 Hirst-type pollen traps. Measurements were taken on an hourly basis from dawn to dusk at both locations, and in addition at Payerne, weekly observations over a period of one year. When using the common hand-held rotameters (with airflow resistance) the flow was 28.3% lower than with resistance-free flowmeter (i.e., measured 10 L/min which was in reality 12.8 L/min). The coefficient of variation between the four easyFlux® devices ranged from 0.32% to 1.55% over one day and from 2.88% to 8.17% over an entire year. Some of the traps showed surprising flow variations during the day. Furthermore, flowrates deviated more when measurements were made at the point where the double-sided tape is behind the orifice than elsewhere on the drum. The measurements away from this point are representative of the flow rates for most of the period of operation and flow calibration should thus be carried out away from this point, contrary to the current procedure.

赫斯特型花粉捕捉器(1952年)是对环境空气中花粉和真菌孢子进行空气生物学测量的最常见设备。20世纪60年代,在线流量计被拆除,此后的研究表明,当使用具有内部气流阻力的手持式转子流量计来调节流速时,通过仪器泵送的气流具有相当大的可变性。为了避免这个问题,我们的研究比较了在不同时间尺度上使用商用低阻力气流计(热风计)时赫斯特型捕集器的气流速率的可变性。实验在慕尼黑(德国)和帕耶恩(瑞士)进行,使用4种不同的easyFlux®仪器和6个赫斯特型花粉捕捉器。从黎明到黄昏,在这两个地点每小时进行一次测量,此外在帕耶恩,在一年的时间里每周进行一次观测。当使用普通的手持式转子流量计(具有气流阻力)时,流量比无阻力流量计低28.3%(即,测量值为10L/min,实际上为12.8L/min)。四个easyFlux®设备之间的变异系数在一天内从0.32%到1.55%不等,在一整年内从2.88%到8.17%不等。一些陷阱在白天表现出令人惊讶的流量变化。此外,在双面胶带位于孔口后面的位置进行测量时,流速的偏差大于滚筒上的其他位置。远离该点的测量值代表了大部分操作期间的流速,因此,与当前程序相反,应远离该点进行流量校准。
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引用次数: 0
Investigation of spatial and temporal variations of airborne Poaceae, Myrtaceae and Cupressaceae pollen and Alternaria spores in Sydney, Australia, 2017–2020 2017-2020年澳大利亚悉尼地区禾科、桃金桃科和柏科空气中花粉和Alternaria孢子的时空变化特征
IF 2 3区 环境科学与生态学 Q2 BIOLOGY Pub Date : 2023-02-16 DOI: 10.1007/s10453-023-09783-w
Johanna Jetschni, Jane Al Kouba, Paul J. Beggs, Susanne Jochner-Oette

There is a need for information on pollen exposure to assess allergy risk. Monitoring of aeroallergens in a city is usually limited to the use of a single trap for the whole area. While a single trap provides enough information on background pollen concentration for the area, varying pollen exposure across different urban environments, however, is not considered. In this study, we analysed aerobiological data of three pollen seasons (2017–2020) recorded with a volumetric pollen trap in Sydney, Australia. In order to assess spatial differences in pollen exposure across the city, we installed ten gravimetric traps recording pollen deposition for eight weeks during the summer of 2019/2020. We considered the influence of meteorological variables, land use, urbanisation and distance to the sea. Our results showed differences in pollen season characteristics across the three analysed seasons and correlations with meteorological parameters. Considering all years, we found for Poaceae and Alternaria the strongest positive correlation with mean temperature and for Myrtaceae and Cupressaceae with maximum temperature. Likewise, there were negative correlations with humidity (Myrtaceae, Cupressaceae, Alternaria) and precipitation (Myrtaceae, Cupressaceae). Days with medically relevant pollen and spore concentrations varied between years and we recorded the highest amount in 2017/2018 for Poaceae and Alternaria and in 2019/2020 for Myrtaceae. In addition, we found spatial and temporal variations of pollen deposition. However, we did not detect significant correlations between pollen deposition and land use, which can be attributable to drought conditions prior to the sampling campaign and the temporal setting in the pollen season. This study highlights the importance of continuous volumetric aerobiological monitoring as well as the assessment of pollen exposure at several locations across a large urban area.

需要花粉暴露的信息来评估过敏风险。对城市空气过敏原的监测通常仅限于对整个地区使用单个诱捕器。虽然单个诱捕器提供了该地区背景花粉浓度的足够信息,但没有考虑不同城市环境中不同的花粉暴露。在这项研究中,我们分析了澳大利亚悉尼用体积式花粉捕捉器记录的三个花粉季节(2017-2020)的空气生物学数据。为了评估整个城市花粉暴露的空间差异,我们安装了十个重力阱,记录2019/2020年夏天八周的花粉沉积。我们考虑了气象变量、土地利用、城市化和离海距离的影响。我们的结果显示了三个分析季节花粉季节特征的差异以及与气象参数的相关性。考虑到所有年份,我们发现Poceae和Alternaria与平均温度的正相关最强,Myrtaceae和Cupressaceae与最高温度的正相关性最强。同样,与湿度(杨梅科、柏科、链格孢属)和降水(杨梅科和柏科)呈负相关。与医学相关的花粉和孢子浓度的天数因年份而异,我们在2017/2018年记录到Poceae和Alternaria的最高数量,在2019/2020年记录到Myrtaceae的最高数量。此外,我们还发现了花粉沉积的空间和时间变化。然而,我们没有检测到花粉沉积和土地利用之间的显著相关性,这可能归因于采样活动之前的干旱条件和花粉季节的时间背景。这项研究强调了连续体积空气生物学监测以及评估大城市地区几个地点花粉暴露的重要性。
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Aerobiologia
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