The Toxic and Hazardous Wastes Research, Development and Extension Center (THWRDEC) are one of the centers created under EO 366 the new Ecosystems Research and Development Bureau (ERDB) Rationalized structure. It is one of the six (6) Research Centers of ERDB.

The center is headed by Ms. Ella S. Deocadiz  as OIC, Center head and staff are comprise of 23 manpower.  The office is located initially at DENR-NCR Production Nursery Compound, Quezon City and eventually will occupy an office at EMB office at DENR Central Office at Visayas Avenue, Q.C. after it’s office building completion.

Guided by the Republic Act 6969, “Toxic Substances and Hazardous and Nuclear  Toxic and Hazardous Wastes, the  Center  focus on the two out of the three program goals: (1) improved environmental quality for clearer and healthier environment; and (2)enhanced resilience of natural systems and improved adaptive capacities of human communities to cope with environmental hazardous and toxic wastes. The center will prioritize concerns on clean water, PD 984 (Pollution Control Law), RA 749 (Clean Air Act), PD 1586 (Environmental Impact Assessment System Law), and assistance to LGUs in implementation of RA 9003 (Ecological Solid Wastes Management Act 2000) and their implementing rules and regulations. Based on research results, the THWRC will provide relevant technologies and information for DENR and other concerned agencies’ decision making, policy formulation and application of appropriate ENR management strategies to address current and emerging issues/concern on toxic and hazardous wastes management.


  1. UTSHWRC shall plan, formulate and implement RDE programs/projects/activities in coordination w/ EMB including generation and transfer of technologies related to management of urban ecosystem, management of toxic substances and Hazardous Wastes and generation of best practices for the abatement of pollution in accordance with the National RDE agenda and framework;
  2. It shall provide technical assistance, disseminate information and conduct educational awareness of the effects of toxic chemical substances, mixtures hazardous wastes on health and environment and other ENR technologies and perform other functions that maybe assigned by higher authority.


Nery A. Alba, Head ERDS-NCR – The designated RC head is not regularly reporting hence, a caretaker will be responsible to oversee the implementation of various activities and submission of accomplishment reports and other pertinent documents center

Elizabeth Amor/ Quinchita Quinares – Secretaries in-charge of the recording of in-coming and out-going of documents

  1. Planning, Admin and Finance
  • Irene Legaspi – In-charge of planning concerns
  • Cristina de Mesa – In-charge of Administrative concerns
  • Elisa Malihan – Special Disbursing Officer of the center

  1. Action Applied Research Unit (AARU)


Project 1. R  & D for the management and improvement of pollution level in highly urbanized areas

  • Study 1. Ecosystems perspective in zoning and land-use planning in highly urbanized areas (2 years)  (Study Leader: Jenny Valle)
  • Study 2. Phytoremediation schemes for polluted waterways/rivers and waste reservoir at industrial and commercial areas in Las Piñas and Parañaque(3 years) (Study Leader: Engr. Teresa Salanguit)
  • Study 3.Settlement processes and determination of solid waste practices of urban communities (2 years) (Study Leader: Cynthia Carpio)
  • Study 4. Application of green technologies to brace communities against impacts of urbanization (2 years) (Study Leader: Irene Legaspi)
  • Study 5 .Assessment of existing green parks  and recreational areas  in highly urbanized areas (3 years) (Study Leader: For . Giselle Garcia)

Project 2. R  & D on integrated management of  toxic substances and hazardous wastes

  • Study 1. Assessment of  workers’ exposure  and other solid waste facility in NCR and nearby areas (1 year) (Study Leader: Nery A. Alba)

  1. Technology Packaging and Promotion Unit (TPPU)

Program: Client – based technology transfer and Extension services for ENR (Over all in-charge: Esmeralda Andres)

  • Project 1. Packaging of ENR Technologies for  Extension and Production of IEC Materials (In-charge: Esmeralda Andres)
  • Project 2. Promotion and Dissemination of Technologies for Sustainable ENR Management (In-charge: Evangeline Marcelino)
  • Project 3. Post Monitoring and Evaluation of Transferred ENR Technologies (In-charge: Salvacion Samson)

  1. Satellite Office- Clonal Nursery

For. Giselle Garcia – Over-all In-charge of the production of NGP-PQPM and maintenance of clonal office

Program Title: Client-based Technology Transfer and Extension Services for Environment and Natural Resources (ENR) Management. (Technology Transfer, Extension and Promotion Unit)

For CY 2015, a client-based Technology Transfer and Extension services is being undertaken by the Technology Transfer unit of the UTSHWRC.  Its activities included the packaging of ENR technologies for extension and the production of related IEC materials; the promotion and dissemination of these ER technologies for stakeholders’ possible adoption; and the monitoring and evaluation of the adopted technologies.

Charcoal Briquetting Technology (CBT) is the banner ENR technology in the National Capital Region.  It is basically promoted as a solid waste management strategy, and secondarily as a livelihood option.  As of this year, four stakeholders are steady producers of  charcoal briquettes in the NCR, namely, “Kababaihan ng Maynila Multi-purpose Cooperative”, Bgy. Tumana, Marikina City, Bgy. Bagumbuhay, Quezon City and the “Samahan ng May Kapansanan sa Taguig” in Taguig City.  IEC materials packaged and being disseminated related CBT included a brochure and IEC fans.

Other publications being disseminated included Fact Sheets on plants as biomonitor of oxides of sulfur and oxides of nitrogen, urban greening primer as well as recommended plant species for urban greening for various areas in NCR.

charq   ttep

Technology promotional and dissemination strategies being used are the following:

  • Conduct of exhibits, technology forum and the using showcase or a demonstration area particularly of CBT;
  • Provision of extension services thru the conduct of hands-on training, techno-demo visits and continuous coaching/mentoring for interested stakeholders.  This also includes the capacitation of stakeholders as special extension service providers for the adopted technology;
  •  Establishment of participatory extension of ENR technologies thru PARTNER-BOND (Pro-Active Response Towards Nurturing Environmental Relation: A Barangay Outreach Project Based on Community Needs and Demands). This involves partnering with LGUs in the implementation of ENR-related projects.


On-going Projects

Project 1. Impact of pollutants from controlled dumpsites/transfer stations to selected communities

1.1 Assessment of workers’ exposure to hazardous wastes from junkshops and waste transfer stations in NCR and nearby areas (1 year)

This study  will be undertaken  to  determine the effects of chronic exposure hazardous wastes (HWs) on selected group of populace in Metro Manila and nearby areas. It has a duration of year and has started this CY 2015. The respondents will include waste pickers, workers  from junkshops, recycling centers, waste transfer stations, and those who are recovering leftovers from used electrical and electronic equipments. Specifically, these will include waste workers in junkshop,  transfer stations near and landfill sites in Payatas, Quezon City, Port Area in  Manila, and Rodriquez, Rizal.

Junkshops along Pier area in Manila

Project 2

2.1. Ecosystems Perspective in Zoning & Land Use Planning in Highly Urbanized Areas in NCR

Land becomes a scarce commodity in highly urbanized area specially  in Metro Manila where there is a very great demand for more spaces for commercial and industrial purposes. Traditionally, the local government units (LGUs) are mandated to develop and implement their respective land use and zoning plans in order to cater to the needs of the various stakeholders. However, this ends up in the usual mapping and designation of the proposed management zones whereby environmental considerations are usually left behind.

 This study which will be undertaken for two years (2015-2016) to create an overview on integrating ecosystems perspective in the zoning and land use planning activities of the LGUs, particularly, in a highly commercial and industrial areas within their respective jurisdictions. It aims to harmonize and maximize the potential uses of the land resources as well as reduce negative impacts to adjoining communities.

For 2015, the study team has considered the City of Taguig as the pilot area where there is an on-going rehabilitation and/or improvement of the FTI complex, now being introduced as the “Arca in the South.” Adjacent to it is the City’s industrial zone.Documents such as CLUP, maps and other pertinent sources of needed data will be gathered and analyzed in order to establish trends and environmental scenarios or situations. This will be followed up by interview of key informants through a focus group discussion (FGD).

map  arca

2.2 Bioremediation Schemes for Polluted Waterways and Waste Reservoir at Industrial and Commercial Areas

This study is to be implemented within waterways and waste reservoirs in highly commercialized and industrialized areas in Metro Manila from 2015 to 2017.  It aims to pilot test and package the use of some known plant species in the rehabilitation of the target areas. Simultaneously, the sources of pollution will be determined and assessed.

Bioremediation as a natural option in reducing pollutants from polluted waterways will be initially carried out in selected creeks and rivers in Las Piňas and Paraňaque.  Experimental plots will be established employing 2 bioremediation schemes. There will be quarterly monitoring on the survival and pollutant intakes of the planted species as well as on the water quality within the study sites.

bio1  bio2

Project 3 :  Improving and Enhancing Healthy Ecosystem for  Communities and Settlement Areas

3.1 Settlement Processes and Determination of Solid Waste Practices of  Communities and Settlers in Selected Resettlement Areas in NCR.

This two (2) year study aims to assess various resettlement programs being implemented in NCR and will identify ESWM practices being observed in these relocation sites.

There are 3 relocations sites to consider in this study. One of these is the relocation  in Southville 3 Housing Project, NBP Cpd. Bgy Poblacion, Muntinlupa City whose beneficiaries are  families who were displaced from PNR’s Railroad Track  Right-of-Way.

The other two (2) target sites are in Disiplina Village, Valenzuela City, and Bistikville 2, Bgy. Kaligayahan, Novaliches, QC. To facilitate data gathering, there will be 300 respondents to be interviewed. To complement this, there will be Focus Group Discussion among concerned stakeholders per relocation site.

To date, some 130 beneficiaries from SV3HP were already interviewed coupled by an FGD and series of community meetings.  Initial finding showed the ESWM is not yet fully implemented in the area.

improve1 improve2

3.2 Application/Adoption of Green Technologies to Brace Communities Against Impacts of Urbanization in the National Capital Region

Several innovations have been introduced like technologies on housing, infrastructures and the like in NCR to reduce further degradation in the environment. Green technology helps reduce emissions, conserves water, reduces waste and consumes less energy than conventional technology.

This study is to be implemented in selected areas in the Metro Mania (Valenzuela City, Quezon City and Mandaluyong City) from 2015 to 2016. It aims to identify green technologies being applied/adopted in selected communities and to determine the level of awareness of the residents on green technology.

Part of the Green technology study activity is an open discussion with the involvement of concerened stakeholders, gathering of data and documentation. A Focused Group Discussion (FGD) was conducted at Valenzuela City hall on April 10, 2015. The FGD was participated/attended by different Chief/Head of the City of Valenzuela. The different 3S centers ((Sentro ng Sama-Samang Serbisyo) adopting green building technology in different barangays in Valenzuela City was documented. Active adoption of Quezon City on solar power/LED lights also form part of study team documentation.

green tech FGD

Project 4

4.1 Assessment of Existing Green Parks and Recreational Areas in National Capital Region (NCR)

This study which will be implemented for three (3) years beginning this CY 2015 to 2017, aims to identify and assess existing green parks and recreational areas in the National Capital Region (NCR). Likewise, establishment and management strategies being applied by the concerned managers/operators/owners of these recreational areas will be established. The outputs from this study will serve as basis or reference to boost up/advance the development and/or enhancement of various open spaces, green belts, parks, plazas, and recreational areas of different types into “green ones” or “environment friendly” in Metro Manila.

Pre-selection of the existing parks and recreational areas per Local Government Units (LGUs) included: (1) locally maintained and managed, and (2) has adopted/used any form of green technology.

As of date, there are already ten (10) existing parks within the Cities of Manila, Valenzuela and Marikina that have been covered by the initial validation activities conducted for the period. These were assessed relative to their existing structures, amenities, and facilities, vegetation cover, existing green technology used/adopted in the area, management strategies and some issues and concerns.

The Plaza Raja Sulayman park in Malate, Manila has been installed and used several units of solar powered LED streetlights in partnership with a South Korean investor/company. Four (4) out of these parks (3 in Manila and 1 in Valenzuela City) used interconnected, inter-locking and multi-coloured concrete bricks for ground cover instead of full concrete. On the other hand, six (6) parks assessed in Marikina City have maintained their natural conditions/characteristics such as using grasses and other similar plant species as ground cover and for landscaping purposes. Both strategies intend to allow natural seepage or percolation of rain water for greater moisture retention and groundwater replenishment.

valenzuela  green park3