MTL Consulting limited believes biodiversity to be the central factor that cuts across all issues pertaining to development. Our company thrives to ensure sustainable use, and conservation of natural resources thus promoting for sustainable development. MTL Consulting also believes that biodiversity contributes to economic development and sustainable social livelihoods as such it portrays a significant role “cross cutting” in many if not all forms of livelihoods
MTL offers the following biodiversity services
Assessment of ecosystem services
Vegetation mapping and Fauna inventories
Consultation services on Rehabilitation and Restoration of degraded ecosystems
Consultation on Conservation education and trainings;
Conducting socio – ecological assessment;
Development of rehabilitation plan;
development of biodiversity action plan; and
Biodiversity planning in developmental Projects
In undertaking biodiversity studies, we take into consideration the local legal and international requirements for Environment, Forestry, Wildlife, Fishery, Water etc., We also take into consideration the applicable international standards and protocols such as IFC PS, cites, Kyoto Protocol, RAMSA, IUNC, CBD etc.
The biodiversity assessment considers both fauna and flora species. Their assessments are sub-categorized further to represent different assemblage in both terrestrial and aquatic ecosystems which include mammals, reptiles, birds, and amphibians, insects, and fish communities for fauna species. It also considers aquatic and terrestrial flora species. Our studies focus in serving our clients to achieve an ecologically sustainable base for development, delivering practical solutions for managing biodiversity risk and achieving positive conservation outcomes. Some requirements from our clients require International legal frameworks, guidelines and standards such as the IFC standards (Performance standard 6) Kyoto Protocol, IUCN standards, CBD standards and guidelines and other similar related frameworks: our company has successfully undertaken several studies to meet such requirements for more information please visit www.iucn.org/, www.ifc.org/performance+standards,www.cbd.int/, www.env.gov.bc.ca › Environmental Protection
Through experienced and motivated Hydrogeologists, MTL is capable of undertaking hydrogeology and groundwater investigation studies for both environmental management and water supply.
MTL uses geo-physical methods to locate groundwater resources, particularly for the mining and water Projects. MTL also undertake groundwater/hydrogeological inventores, groundwater flow and groundwater levels assessment, groundwater recharge, groundwater inflow into the pits, dewatering assessment and groundwater impact assessment.
Other services include pump tests, assessment groundwater quality and pollution plumes, aquifer characterizing, ARD investigations etc.
MTL underpins that hydrological baseline study is crucial undertaking for successful development of the Project. MTL also believes that environmental and Project benefits may be achieved as a result of hydrological impact management. We bring reputable methodologies, leading edge technologies and transfer of knowledge and skills to practically manage development impacts on hydrological responses during project planning. Our experts have significant philosophical knowledge on how Project may affects hydrological responses, and how hydrological responses may affect the Project and/or Project facilities. To counteract these cases, MTL is indebted to integrate the engineering and consulting skills in provision of the following services, among others:
Hydro census-Water sources identification and mapping
Water Flow Assessment-Measure water flows by current meter, Q-Liners and V-Notch
Project Water Demand (Operational Water Balance) and Water Availability (Ambient Water Balance).
Root cause analysis of the hydrological responses changes. Prediction of Hydrological process, quality and quantity.
Water Quality Assessment-Collecting water samples and assessing physical, chemical and biological indicators of water quality.
Development of the feasible hydrological impact, monitoring and management programs.
VISUAL AMENITY ASSESSMENT
Visual Impact Assessment is undertaken to assess any visibility impacts that might be caused by the proposed Projects. This is undertaken by identifying the affected receptors and accessible viewpoints to residential areas or public. The visual impacts assessment considers the sensitivity of landscape receptors, the magnitude of an effect and the significance of an effect which depends on the receptor’s sensitivity and the magnitude of the effect. In order to assess and identify the changes or any modifications, MTL uses the view shed analysis with GIS as well as stakeholder engagement in undertaking Visual Impact Assessments.
Undertaking Visual Impact Assessment is not a legal requirement as per Tanzania legislation, however, most of our clients who require the international compliance such as AfDB, IFC and WB are required to undertake the visual study,(www.ifc.org/performance+standards). Based on this requirement, MTL has successfully undertaken a number of Visual Impact Assessments over the 20 years of experience.
OCCUPATIONAL AND HEALTH SAFETY (OHS)
MTL Consulting undertakes Health Impact Assessment (HIA) to gather understanding of the Project health environment prior to Project development. HIA is assessed in two categories, Community Health (CHIA) and the occupational health and Safety (OHS). The process is guided by the IFC performance standard 2 and 4, OHSA 180001 and the Environmental, Health and Safety Guideline stipulated by World Health Organisation (WHO) HIA.
The study aims at gathering baseline data on health, safety and occupational conditions before commencement of the Project, identification of the health determinants; risks factors and beneficial impacts to the communities in the impact area and company workers as a whole.
MTL Consulting undertakes Radioactivity Survey to gather understanding of the project radiation level prior to project development. Radiation survey is assessed in two categories, outdoor radiation (Environment) and the indoor radiation (occupational health). The study aims in gathering data on the baseline radiation conditions of the project area, identification of the health determinants; risks factors and beneficial impacts to the communities and to the workers.
AIR QUALITY, NOISE AND VIBRATION SURVEY
MTL undertake baseline Air quality assessments, Noise and Vibration Survey. The assessments are carried out for many different development projects, in a range of existing environments. The proposed schemes often require multiple impacts to be assessed, both as part of the proposed development, or as part of the existing environment. The team is well experienced in meeting the demands of developers from different backgrounds and understands their different requirements and methods of operation. We are familiar with relevant legislation, national planning guidance and with the objectives of the various regulators. Assessment are therefore designed and carried out in compliance with appropriate requirements, yet with the best interests of the Client in mind. MTL is indebted to offer the following services, among other:
Air quality Monitoring
PM10, PM2.5 dust sampling
Pollutant Gaseous monitoring
Dust Fallout Sampling
Meteorological Data Analysis and Climate Assessment
Air Quality Data analysis and Routine Reporting
Process and Technology Review
Source Monitoring programme Design
Emissions Abatement and Best Available Technology Application
Atmospheric Dispersion Modelling
Buffer Zone Projection
Environmental Noise and Vibration Survey
Noise Propagation and Assessment
Over the years MTL Consulting has successfully undertaken numerous soil survey for many projects as it is one of the principle requirement by the relevant legislative frameworks in the country and with some other project internationally set standards and guidelines. The general objective of conducting soil surveys within the project sites has been to characterize soils of the proposed Project sites for the purpose of ascertaining their physical and chemical characteristics so as to evaluate their general physical standards on any observed changes prior to existing environmental management plan and the suitability of such soil characteristics for rehabilitation/restoration actions. Ideally, a good soil that will favor plant growth ought to have the selected chemical properties presented here under. Studies on soil physical and chemical properties have been proposed in many studies and also incorporated in the soil quality standards as indicators of nutrient supplying capacity of agricultural, forest soils and rangeland that will henceforth support stable ecosystems hosting relatively diversities of flora and fauna species. As for the heavy metals, mining are regarded as a significant source of heavy metals contamination of the environment owing to activities such as mineral exploitation, ore transportation, smelting and refining, disposal of the tailings and waste waters around mines. Toxic chemicals are released into the environment following weathering of the heaped waste materials. Such harmful metals include Lead (Pb), Mercury (Hg), Copper (Cu), Nickel (Ni), Uranium (U) and Cadmium (Cd) are among heavy metals reported in many mine polluted soils in Tanzania and are amongst extensively studied heavy metals in the soil elsewhere. The selected heavy metals are prescribed in the soil quality standards. See the National environmental management (soil quality standards) regulations (2007) of Tanzania which are also in concurrence with East Africa Regulations and standards. The following description below shows different methodological approaches that are normally conducted in site and other in the laboratory analyses work
DETERMINATION OF SOIL PHYSICAL CHARACTERISTCS
Soil textural classes are established according to the modified method by Thien (1979). This method entails estimating percentages of sand, silt, and clay particles in a soil by rubbing the moist soil between the fingers and the thumb and estimating the amount of the various separates present. The estimation of various separates are normally done by a skilled and experienced field soil scientist.
Soil colour is determined in the field by comparing a piece of soil to the standard color chips in a Mussel color charts.
This is established in the field by observing type (shape) of the structural peds present and their relative size (e. g fine, medium or coarse) and degree of development or distinctness of the peds such as strong, moderate or weak.
Prior the analyses the collected soil samples for laboratory analyses are pre-treated based on the following procedures:
Drying the soil samples by placing them in a shallow tray in a well ventilated, dust and wind free area.
Breaking the clay clods, crushing the soil lumps in order to remove gravel, roots and large organic residues and
Sieving the soil samples through a 2 mm sieve, and ground them in a mortar in order to pass through a 60 mesh screen ready for chemical analysis
Soil pH and electrical conductivity (EC) is measured in H2O suspension (1:2) and detected directly using a probe. Total Nitrogen determination employs semi-kjeldahl digestion method in accordance to Allen (1999) while soil organic matter is evaluated using Walkley-Black potassium method (Nelson and Sommers, 1999). The available phosphate is established using Bray P-1 method developed by Emteryed (1989). Amounts of exchangeable bases (K, Ca, and Mg) and cation exchange capacity (CEC) is measured after successive extraction using 1 mol L-1 ammonium acetate (pH 7.0) and 100g L-1 NaCl. The amount of NH+4 replaced by sodium the then determined by the steam distillation method. An exchangeable base concentration is resolved by atomic absorption spectrometry.
Analysis of the selected heavy metals (Hg, Cd, U, Pb, Cu, Ni) is conducted by ICP-OES after extraction with DTPA. Testing of heavy metal levels is conducted based on the permissible levels by the National environmental management (soil quality standards) regulations (2007) of Tanzania