- Phytoremediation1
- Plant Ecology1
- Plants---Extinction1
- Pollutants1
- Pollution -- Environmental aspects -- Lake Tanganyika1
- Pollution -- Environmental aspects -- Zambia1
- Pollution--Enviromental aspects--Zambia1
- Pollution--Measurement--Zambia1
- Preservation of Wildlife1
- Primary Reading Programmes1
- Public Private Partnerships, Desirability Model, Country Risks, Stakeholders Risks, Risk Allocation, Stakeholder Satisfaction, Legal framework1
- Public health, pathogenic,bacteriological,water1
- Public health--Namibia1
- Quality Control--Lusaka water and sewerage company1
- Radioactive decay1
- Radioactive substances in rivers, lakes, etc.--Zambia1
- Recycling (Waste, etc.)--Zambia1
- Refuse and Refuse Disposa-Livingstone, Zambia1
- Refuse and Refuse Disposal-Government Policy-Zambia1
- Refuse and Refuse Disposal-Zambia1