Temporal Variability of Trace Metal Evidence in Cupressus arizonica, Platanus orientalis, and Robinia pseudoacacia as Pollution-Resistant Species at an Industrial Site

This study aimed to determine the variations in K and Mg element concentrations in branches, leaves, and seeds of Aesculus hippocastanum, Prunus ceracifera, Tilia platyphyllos, Acer negundo, and Ailanthus altissima, which are frequently used in urban areas, especially in landscape studies, based on traffic density. As a result, the changes in the elements based on the traffic density in all organs and organs in all traffic intensities were significant (P

Section: Discussionmentioning

confidence: 99%

Changes of Plant Nutrients K and Mg in Several Plants Based on Traffic Density and Organs

Koç

Canturk

ÇOBANOĞLU

2022

“…In addition, heavy metal accumulation in plant organs varies greatly depending on the plant habitus [62]. Plant habitus is formed under the mutual interaction of plant genetics [45,[89][90][91] and environmental conditions [73,[92][93][94]. Therefore, environmental conditions that affect plant life conditions also greatly affect heavy metal accumulation in plant organs [59].…”

Section: Discussionmentioning

confidence: 99%

“…In addition to the increase in the world population in recent years, the gradual increase in the population living in urban centers has brought along many problems . In this process, as a result of traffic and other anthropogenic activities, especially in urban centers, various elements, many of which are dangerous for life, are found in soil [26][27][28][29][30], water [31][32][33][34][35][36][37][38] and air [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56] concentrations in various organs of animals [57] and plants [58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73] growing in these...…”

Section: Introductionmentioning

confidence: 99%

SAMSUN KENT MERKEZİNDE YETİŞEN BAZI BİTKİLERDE B ve Ag KONSANTRASYONLARININ TRAFİK YOĞUNLUĞUNA BAĞLI DEĞİŞİMİ

Cetin

2022

Artan nüfus ve sanayileşme, hava kirliliğini de beraberinde getirmiş, hava kirliliği bazı şehirlerde insan sağlığını tehdit edecek düzeyde artmış ve günümüzün en önemli gündem konularından birisi haline gelmiştir. Kent içerisinde egzoz gazları, araba tekerleri, araçlar ve araç aşınmalarından kaynaklanan pek çok kirletici madde ortaya çıkmaktadır. Bunlar arasında özellikle ağır metaller büyük öneme sahiptir. Zira ağır metaller doğada bozulmadan uzun süre kalabilmekte ve çevredeki konsantrasyonu da sürekli artmaktadır. Ayrıca biyobirikme eğilimindedir. Bundan dolayı ağır metal konsantrasyonunun belirlenmesi, riskli bölgelerin ve risk düzeyinin tespit edilmesi açısından büyük öneme sahiptir. Ağır metal kirliliğinin atmosferdeki konsantrasyonunun değişimini gösteren en önemli belirteçler biyomonitörlerdir. Bu çalışmada da trafik kaynaklı ağır metal konsantrasyonunun izlenmesinde kullanılabilen Eonymus japonica (Ej), Juniperus sabina (Js) ve Buxus sempervirens (Bs) türlerinde B ve Ag elementlerin konsantrasyonlarının organ bazında yıkama durumu ve trafik yoğunluğuna bağlı değişimi belirlenmeye çalışılmıştır. Çalışma kapsamında çalışmaya konu bitki türlerinin, trafiğin yoğun olduğu, az yoğun olduğu ve trafiğin bulunmadığı alanlarda yetişen bireylerinden yaprak ve dal örnekleri toplanmış, örneklerin bir kısmında yıkama işlemi gerçekleştirilmiş ve hazırlanan örneklerde ağır metal analizleri yapılarak B ve Ag elementlerinin konsantrasyonları belirlenmiştir. Çalışma sonucunda farklı türlerin ağır metalleri farklı düzeyde biriktirdiği, elementlerin konsantrasyonlarındaki değişimin de tür bazında organ ve trafik yoğunluğuna bağlı olarak değişiklik gösterdiği belirlenmiştir.

“…The plants grown for landscaping purposes constitute a significant portion in the wastes, which are an important factor in environmental pollution [30]. Although plants fulfill many ecologic, economic, and social functions in urban areas, the organs drying or falling as a result of the natural development process constitute an important source of pollution [31][32][33][34]. The most frequently used method in the elimination of plant wastes is the collection and combustion but this method results in a high level of carbon emission.…”

Section: Introductionmentioning

confidence: 99%

Usability of Organic Wastes in Concrete Production; Palm Leaf Sample

Bayraktar

2022

Palm leaves are vegetal waste that are not widely used by the society, only piled up and causing odors that mix with the environment. Channeling this waste material into the construction industry helps to overcome waste disposal problems as well as promote sustainability. The most important features expected from the buildings are the creation of the most suitable environmental conditions for the products to be stored or the creatures that will live in them, and they can be used safely for a long time. In the construction of the buildings, materials that are the cheapest possible, safe and capable of creating the optimum environmental conditions should be used. The materials to be selected should have sufficient strength and durability, high heat and sound insulation and lightness. Since single-storey buildings are not subject to excessive load, it is important that the thermal insulation is high and light in material selection. Since the widespread use of concrete as a building material in the world, efforts to make concrete light, cheaper and better insulating have gained importance. Lightweight concrete, which is easy to apply, has been an important building material in recent years. With the use of lightweight concrete as a building material, benefits such as economy in terms of material, earthquake resistance, and the elimination of a second insulation material for heat and sound insulation can be achieved. In this study; Experimental study using Portland cement (CEM I), Palm Leaf, CEN standard sand and water mortar production; sample production, curing, some physical and mechanical experiments were carried out in four stages. The usability of palm leaf, which is a vegetable waste, as aggregate in concrete production by replacing it with CEN standard sand at 0, 5, 10, 20, 30 and 40% as well as 10% with cement has been investigated. The study results show that the addition of both ground palm leaf and palm leaf aggregate significantly altered almost all properties of concrete. These changes are at different levels in terms of physical properties. As a result of the study, it was determined that as the amount of foam increased, the spreading diameter increased, whereas palm leaf addition decreased the spreading diameter. It has been determined that the addition of palm leaf decreases the depth of water treatment depending on time, the porosity of the samples with high level of palm leaf addition increases and the compression and bending strength decreases.