Welcome to Portugal could be said to this new species of dragonfly who is entering Portuguese territory from Spain. It is not an introduction because the insects come by their own. Scientists call it Trithemis kirbyi. About two decades ago, the dragonfly began to occupy the neighboring country Spain from North Africa where it [...]

We celebrate 25 years of biological swimming pools. In the last few years we have acted with more creativity than ever. We invented new concepts and designed really extraordinary projects across the country and some beyond. Above all, the tourism sector allows to dream big. We designed a biological swimming pool for tourist use [...]

In this interview Udo Schwarzer, biologist, talks about his work with biological pools, which have been a story of success for 25 years. Water is important to you because ...? It's life. What was the first biological pool that you designed? A successful challenge. What distinguishes designs from the early days from today? The [...]

Plant growth is essential for the ecosystem in a biological pool. Well growing plants incorporate nutrients diluted in water and are thus the natural competitors of algae. Well-developed aquatic vegetation is the basis for bathing  water quality. Like terrestrial plants, aquatic plants also release a lot of oxygen during the day. In well-oxygenated water, [...]

Those who do not prefer to stay in the shade, will need sunscreens during summer sunbathing. Unfortunately, some of these non-mineral sunscreen products are not healthy for human health or the environment. Among the ingredients of these chemicals are so-called oxybenzones, one of the most commonly used chemicals in sunscreens. About 60% of non-mineral [...]